Output Transistors also used in which other Stereo Receivers / Amplifiers

The information on this page is from deduced from what we have found while servicing units. While most units that come through our shop will have their original / OEM devices, occasionally we will find substitutions in them. If they are 'known aftermarket' parts made by ECG, STK, NTE etc. then we list them as probably 'replacements'. A service shop may have substituted a 'Toshiba' for an 'NEC' or 'Motorola' or some other brand that could have come in a comparable unit originally. In that case, we will likely list them. Also, manufacturers changed device suppliers from time to time, without any notice or notation in a service manual or addendum, simply because one device mfg discontinued a component / semiconductor, or the equipment mfg may have gotten a better price from another supplier on another brand.
These are not necessarily parts we have available or for sale, nor do we know who does. This information is only posted for reference purposes.

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
ADCOM OUTPUT TRANSISTORS

Adcom	GFA-555	Power Amplifier	8 ea.	Toshiba	2SC1116A (NTE284) & 2SD424 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
AKAI OUTPUT TRANSISTORS
AKAI	AA-R41	Receiver	2 ea.	Toshiba	2SB663 & 2SD1148	Epoxy
AKAI	X-1800SD (Type A & B)	Reel to Reel Tape deck	4 ea.	Toshiba	2SB463	Metal
AKAI	X-1800SD (Type C)	Reel to Reel Tape deck	4 ea.	Hitachi	2SD1060 (NTE377)	Epoxy
AKAI	X-1810	Reel to Reel Tape deck	4 ea.	Hitachi	2SD1060 (NTE152)	Epoxy

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
ALTEC OUTPUT TRANSISTORS

ALTEC	1207B	Power Amplifier	12 ea.	Toshiba & RCA	2N3773 & 2N6609	TO-3 Metal Cased	We do not know if the example we had was still sporting it's original output transistors or not.

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
BIAMP OUTPUT TRANSISTORS
BIAMP	TC/120	Power Amplifier	4 ea.	Motorola or NEC	7739 & 7752 or replacement NEC 2SB600 / 2SD555	TO-3 Metal Cased	(see also; Biamp TC/120, Kenwood KR-8010 / KR-8110, Pioneer SX-1250)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
CARVER OUTPUT TRANSISTORS
CARVER	HR-752	Receiver	2 ea.	NEC	2SA1302 & 2SC3281	TO-3 Metal Cased	(see also; Carver HR-752 & Carver MXR-6250)
CARVER	MXR-6250	Receiver	2 ea.	NEC	2SA1302 & 2SC3281	TO-3 Metal Cased	(see also; Carver HR-752 & Carver MXR-6250)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
CONCEPT OUTPUT TRANSISTORS
CONCEPT	5.5	Power Amplifier	2 ea.	NEC	2SB541 (NTE281) & 2SD388 (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
DYNACO OUTPUT TRANSISTORS

DYNACO	SCA-80Q	Integrated Amplifier	4 ea.		2N3772	TO-3 Metal Cased	(Sub NTE / ECG 181)


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
FISHER OUTPUT TRANSISTORS

FISHER	CA-271	Integrated Amplifier	6 ea.?		1332?	Epoxy
FISHER	CA-283	Integrated Amplifier	2 ea.	Toshiba	2SA1301 & 2SC3280	Epoxy
FISHER	RS-2004A	Stereo Receiver	2 ea.		STK 0050


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
HAFLER OUTPUT TRANSISTORS

HAFLER	DH-220	Power Amplifier	4 ea.		461049 / 7913 & 571134 / 7917)	TO-3 Metal Cased


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
HK HARMON KARDON OUTPUT TRANSISTORS


Harman Kardon H/K	330A & 330B (not 'C')	Stereo Receiver	4 ea.	Sanken	2SC1061 or replacement 2SD880	Epoxy - Discrete
Harman Kardon H/K	PM645 VXI	Integrated Amplifier	2 ea.		2SA1265 & 2SC3183	Epoxy - Discrete	(See also; HK PM645 VXI, Yamaha R-700U)


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
HEATHKIT OUTPUT TRANSISTORS


Heathkit	AR-15	Stereo Receiver	2 ea.	RCA	RCA 417-139 Silicone or 40411 Germanium NPN RCA 417-135 Silicone or 2N3859A NPN	TO-3 Metal Cased


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
JVC OUTPUT TRANSISTORS

JVC	R-S33	Stereo Receiver	2 ea.	Toshiba	2SB755, and / or 2SD845	Epoxy - Discrete	(also used in JVC JR-3SS, Onkyo TX-61 & Onkyo TX-5000 & Yamaha CR-2040)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
KENWOOD OUTPUT TRANSISTORS

Kenwood	BASIC M1D	Power Amplifier	2 ea.	Sanken	2SA1216 (NTE59) & 2SC2922 (NTE58)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Kenwood	BASIC M2 & M2A	Power Amplifier	2 ea. (8 total)	Sanken	DAT1018N & DAT1018P & DAT1521N & DAT1521P	Epoxy cased	(see also; Kenwood Basic M2 & M2A)
Kenwood	KA-405	Integrated Amplifier	2 ea.	SK	2SA1105 & 2SC2580	Epoxy cased	(see also; Kenwood KA-405, Onkyo A-7040 & Sansui AU-417)
Kenwood	KA-3500	Integrated Amplifier	2 ea.		2SD588 & 2SB618	Epoxy - Discrete	(see also; Kenwood KA-3500 & KR-4070 & Marantz 1090)
Kenwood	KA-5700	Integrated Amplifier	2 ea.	NEC	2SB617A & 2SD587A	TO-220	VERY DIFFICULT TO OBTAIN and doesn't seem to easily 'cross' to anything that we've found.
Kenwood	KA-6000	Integrated Amplifier	2 ea.	Hitachi	2SC898 (crosses to NTE280)	TO-3 Metal Cased
Kenwood	KA-6004	Integrated Amplifier	2 ea.		2SA744 & 2SC1402	TO-3 Metal Cased	(see also Kenwood KA-6004, Sansui QRX-7500)
Kenwood	KA-6100	Integrated Amplifier	2 ea.	Sanken	2SA980 & 2SC2260	TO-3 Metal Cased	(May Be replacements?)
Kenwood	KA-7100	Integrated Amplifier	2 ea.	Toshiba	2SB557 (NTE281) & 2SD427 (NTE280) (some units came with 2SB655 & 2SD675)	TO-3 Metal Cased	(see also; Kenwood KA-7100, Marantz 1152DC Integrated Amp, Pioneer SX-950, Technics SA-700A, Yamaha CR-820 and likely others)
Kenwood	KM-105	Power Amplifier	2 ea.	Sanken	2SA1215 & 2SC2921	Epoxy - Discrete	(see also; Kenwood KM-105, KM-106, KM-107, NAD 2150)
Kenwood	KM-106	Power Amplifier	2 ea.	Sanken	2SA1215 & 2SC2921	Epoxy - Discrete	(see also; Kenwood KM-105, KM-106, KM-107, NAD 2150)
Kenwood	KM-107	Power Amplifier	2 ea.	Sanken	2SA1215 & 2SC2921	Epoxy - Discrete	(see also; Kenwood KM-105, KM-106, KM-107, NAD 2150)
Kenwood	KM-205	Power Amplifier	2 ea.	Sanken	2SA1216 (NTE59) & 2SC2922 (NTE58)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Kenwood	KM-206	Power Amplifier	2 ea.	Sanken	2SA1216 (NTE59) & 2SC2922 (NTE58)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Kenwood	KM-207	Power Amplifier	2 ea.	Sanken	2SA1216 (NTE59) & 2SC2922 (NTE58)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Kenwood	KM-208	Power Amplifier	2 ea.	Sanken	2SA1216 (NTE59) & 2SC2922 (NTE58)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Kenwood	KR-77	Stereo Receiver	4 ea.	NEC	2SD180	TO-3 Metal Cased	(see also; Kenwood KR-77, TK-66U and likely others)
Kenwood	TK-77	Stereo Receiver	4 ea.	NEC	2SD180	TO-3 Metal Cased	(see also; Kenwood KR-77, TK-66U and likely others)
Kenwood	KR-710	Stereo Receiver	2 ea.		2SB690 & 2SD726	Epoxy - Discrete
Kenwood	KR-810	Stereo Receiver	1 ea.		STK-460A	Large Power Pack / IC
Kenwood	KR-3060	Stereo Receiver	2 ea.		2SB595 & 2SD525	Epoxy - Discrete	(see also; Kenwood KR-3060 & KR-3600)
Kenwood	KR-3600	Stereo Receiver	2 ea.		2SB595 & 2SD525	Epoxy - Discrete	(see also; Kenwood KR-3060 & KR-3600)
Kenwood	KR-4070	Stereo Receiver	2 ea.		2SD588 & 2SB618	Epoxy - Discrete	(see also; Kenwood KA-3500 & KR-4070 & Marantz 1090)
Kenwood	KR-5200	Stereo Receiver	4 ea.	Sanken	2SC1111 (NTE280) (Some units had 33188-2.)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)") Some units had 33188-2.
Kenwood	KR-5030	Stereo Receiver	2 ea.	Sanken	2SA981 & 2SC2261	TO-3 Metal Cased
Kenwood	KR-6030	Stereo Receiver	2 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Kenwood	KR-8010 / KR-8110	Stereo Receiver	2 ea.	NEC	2SB600 & 2SD555	TO-3 Metal Cased	(see also; Biamp TC/120, Kenwood KR-8010 / KR-8110, Pioneer SX-1250)
Kenwood	KR-8050	Stereo Receiver	2 ea.	Sanken	2SA1116 & 2SC2607	TO-3 Metal Cased	(see also; Kenwood KR-8050, Sansui 5000A)
Kenwood	KR-9400	Stereo Receiver	4 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Kenwood	KR-9940	Stereo Receiver	8 ea.		2SD287	TO-3 Metal Cased	(also used in Kenwood KR-9940, Pioneer SX-1050, Realistic STA-2000, Realistic STA-2300 and likely others) (could possibly sub NTE 284 & 285)
Kenwood	KR-10000-III (Eleven-III)	Stereo Receiver	2 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Kenwood	KR-NINE G	Stereo Receiver	2 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
MARANTZ OUTPUT TRANSISTORS
Marantz	240	Power Amplifier	2? or 4? ea.	Motorola	SJ2519 & SJ2519	TO-3 Metal Cased
Marantz	250	Power Amplifier	2? or 4? ea.	Motorola	SJ2519 & SJ2519	TO-3 Metal Cased
Marantz	1152DC	Integrated Amplifier	2 ea.	Marantz	2SB557 (NTE281) & 2SD427 (NTE280)	TO-3 Metal Cased	(see also; Kenwood KA-7100, Marantz 1152DC Integrated Amp, Pioneer SX-950, Technics SA-700A, Yamaha CR-820 and likely others)
Marantz	1060B	Integrated Amplifier	2 ea.		2SB686 (NTE37) & 2SD716 (NTE36)	Epoxy - Discrete	(See Marantz 1060B, Sherwood S-8300CP & Yamaha CA-410-II)
Marantz	1160	Integrated Amplifier	2 ea.	Hitachi / Marantz	2SK3947 & 2SC897 & 2SC1586	TO-3 Metal Cased	(some were / are replacements)
Marantz	1190	Integrated Amplifier	2 ea.	NEC	2SD588 & 2SB618	Epoxy - Discrete	(see also; Kenwood KA-3500 & KR-4070 & Marantz 1090)
Marantz	1250	Integrated Amplifier	4 ea.	Marantz	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Marantz	2220B	Stereo Receiver	2 ea.		2SA627 & 2SD188	TO-3 Metal Cased
Marantz	2238 & 2238B	Stereo Receiver	2 ea.	Marantz	2SB541 (NTE281) & 2SD388 (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Marantz	2240	Stereo Receiver	4 ea.	Marantz	2SC1403 (NTE284)	TO-3 Metal Cased	(see also; Marantz 2240, 4300, Sansui AU-317, Sansui G-801, Sansui G-8000, Yamaha CA-1010, Yamaha CA-2010, and likely others)
Marantz	2245	Stereo Receiver	2 ea.	Motorola	2SJ2513 & 2SJ2514	TO-3 Metal Cased	These 2SJ2513 & 2SJ2514 transistors appear to have only been used in a Marantz 2245. We have not even been able to find a substitute. If anyone has info to the contrary, please let us know.
Marantz	2250	Stereo Receiver	4 ea.	Marantz	2SC1343	TO-3 Metal Cased
Marantz	2252	Stereo Receiver	2 ea.	Marantz	2SA753 & 2SC1343	TO-3 Metal Cased
Marantz	2270	Stereo Receiver	2 ea.	Motorola	2SJ2517 & 2SJ25118	TO-3 Metal Cased
Marantz	2285B	Stereo Receiver	2 ea.	Marantz or Toshiba	2SB557 (NTE281) & 2SD424 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)
Marantz	4025 / MRC425	Stereo Receiver / Cassette Deck (Casseiver)	2 ea.	Sanken	2SA1060 & 2SC2484	Epoxy
Marantz	4300	Stereo / Quadraphonic Receiver	4 ea.	Sanken	2SA745 (NTE281) & 2SC1403 (NTE284)	TO-3 Metal Cased	(also used in Marantz 4300, Sansui AU-317)
Marantz	4270	Stereo / Quadraphonic Receiver	8 ea.	Hitachi	2SC897	TO-3 Metal Cased
Marantz	SR-2000	Stereo Receiver	2 ea.	STK	STK 080G	Large Power Pack / IC
Marantz	SR-4000	Stereo Receiver	2 ea.	Sanken	STK 0050 II	Large Power Pack / IC
Marantz	SR-6003	Stereo Receiver	2 ea.	STK	2SB1647 & 2SD2560	Epoxy
Marantz	Twenty Eight / 28	Stereo Receiver	2 ea.		Hitachi 2SC830 / NEC 2SD155


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
MCINTOSH OUTPUT TRANSISTORS
McIntosh	MAC 1700	Stereo Receiver	4 ea.	Motorola	32-070 (132-070)	TO-3 Metal Cased
McIntosh	MAC 1900	Stereo Receiver	4 ea.	Motorola	32-070 (132-070)	TO-3 Metal Cased
McIntosh	MC2100	Amplifier	4 ea.	Motorola	32-070 (132-070)	TO-3 Metal Cased


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
MCS MODULAR COMPONENT SYSTEMS OUTPUT TRANSISTORS
MCS (Modular Component Systems)	MCS 3249	Stereo Receiver	2 ea.		2SB849 (NTE37) & 2SD1110 (NTE36)	Epoxy - Discrete
MCS (Modular Component Systems)	MCS 3275	Stereo Receiver	4 ea.		2SB518 (NTE180) & 2SD588A	Epoxy - Discrete


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
MITSUBISHI OUTPUT TRANSISTORS
Mitsubishi	DA-A10DC	Power Amplifier	2 ea.	Sanken	2SA908 & 2SC1585	TO-3 Metal Cased
Mitsubishi	DA-R7	Receiver			STK-1039	Power Packs
Mitsubishi	M-A4370	Power Amplifier	2 ea.		STK-4044V	Power Packs



BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
NAD OUTPUT TRANSISTORS
NAD	NAD 2150	Power Amplifier	2 ea.	Sanken	2SA1215 & 2SC2921	Epoxy cased	(see also; Kenwood KM-105, KM-106, KM-107, NAD 2150)
NAD	NAD 3120	Integrated Amplifier	2 ea.	RCA	MJ2955 (NTE219) (NTE130) & MJ2955	TO-3 Metal Cased	(see also; NAD 3120, 7220PE & 7225PE)
NAD	NAD 7220PE	Receiver	2 ea.	RCA	MJ2955 (NTE219) (NTE130) & MJ2955	TO-3 Metal Cased	(see also; NAD 3120, 7220PE & 7225PE)
NAD	NAD 7225PE	Receiver	2 ea.	RCA	MJ2955 (NTE219) (NTE130) & MJ2955	TO-3 Metal Cased	(see also; NAD 3120, 7220PE & 7225PE)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
ONKYO OUTPUT TRANSISTORS

Onkyo	A-7	Integrated Amplifier	2 ea.	Toshiba	2SA556 & 2SD426 (NTE328)	TO-3 Metal Cased
Onkyo	A-7040	Integrated Amplifier	2 ea.	SK	2SA1105 & 2SC2580	Epoxy cased	(see also; Kenwood KA-405, Onkyo A-7040 & Sansui AU-417)
Onkyo	TX-35	Receiver	1	STK	STK4893	Large Power Pack / IC
Onkyo	TX-61	Stereo Receiver	2 ea.	Toshiba	2SB755, and / or 2SD845	Epoxy - Discrete	(also used in JVC JR-3SS, Onkyo TX-61 & Onkyo TX-5000 & Yamaha CR-2040)
Onkyo	TX-5000	Stereo Receiver	2 ea.	Toshiba	2SB755, and / or 2SD845	Epoxy - Discrete	(also used in JVC JR-3SS, Onkyo TX-61 & Onkyo TX-5000 & Yamaha CR-2040)
Onkyo	TX-8500	Receiver	4 ea.	Toshiba	2SB554 (NTE285) & 2SD424 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
OPTONICA (SHARP) OUTPUT TRANSISTORS

Optonica	SA-5406	Receiver	2 ea.		STK0070-II	Epoxy cased


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
RBH OUTPUT TRANSISTORS

RBH	SA-200	Power Amplifier	2 ea	Toshiba	2x 2SA1943 & 2x 2SC5200	Epoxy cased	(also used in RBH SA-200 & RBH SA-400)
RBH	SA-400	Power Amplifier	3 ea.	Toshiba	3x 2SA1943 & 3x 2SC5200	Epoxy cased	(also used in RBH SA-200 & RBH SA-400)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
REALISTIC OUTPUT TRANSISTORS

REALISTIC (RADIO SHACK)	RADIO SHACK / REALISTIC SA-2000	Integrated Amplifier	4	Toshiba	2SD426 (NTE328)	TO-3 Metal Cased	(also used in Realistic SA-2000, STA-235B, Sansui 5000A)
REALISTIC (RADIO SHACK)	RADIO SHACK / REALISTIC SA-2001	Integrated Amplifier	4	Sanken	2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
REALISTIC (RADIO SHACK)	RADIO SHACK / REALISTIC STA-85	Receiver	4		2SC1051	TO-3 Metal Cased
REALISTIC (RADIO SHACK)	RADIO SHACK / REALISTIC STA-235B	Receiver	4	Toshiba	2SD426 (NTE328)	TO-3 Metal Cased	(also used in Realistic SA-2000, STA-235B, Sansui 5000A)
REALISTIC / RADIO SHACK	RADIO SHACK / REALISTIC STA-2000	Receiver	2 ea.	NEC	2SB539C & 2SD287C	TO-3 Metal Cased	(also used in Kenwood KR-9940, Pioneer SX-1050, Realistic STA-2000, Realistic STA-2300 and likely others) (could possibly sub NTE 284 & 285)
REALISTIC / RADIO SHACK	RADIO SHACK / REALISTIC STA-2100	Receiver	2 ea.	Hitachi	2SD675A & 2SB655A	TO-3 Metal Cased
REALISTIC / RADIO SHACK	RADIO SHACK / REALISTIC STA-2300	Receiver	2 ea.		2SB539C / 2SD287C	TO-3 Metal Cased	(also used in Kenwood KR-9940, Pioneer SX-1050, Realistic STA-2000, Realistic STA-2300 and likely others) (could possibly sub NTE 284 & 285) (could possibly sub NTE 284 & 285)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
PHILIPS OUTPUT TRANSISTORS

Philips	AH-794	Stereo Receiver	4 ea.	Motorola	149-10	Discrete Epoxy	Sub; NTE152
Philips	AH-7851	Stereo Receiver	4 ea.	Motorola	179-2	TO-3 Metal Cased	Sub; NTE284


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
PIONEER OUTPUT TRANSISTORS

Pioneer	A-40	Integrated Amplifier	2 ea.		2SA1075 (NTE93) & 2SC2525 (NTE92)	Discrete Epoxy	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	QX-646	Stereo Receiver	4 ea.	Toshiba	2SC789 (NTE152)	TO-3 Metal Cased	(2SC789 (NTE152) also used in Pioneer QX-646, QX-4000 & SX-535)
Pioneer	QX-949 / 949A	Stereo Receiver	4 ea.	Toshiba / Sanken	2SB530 & 2SD370 / 2SA747A (NTE281) & 2SC1116 (NTE284) / 2SA679 & 2SC1079 (NTE280) / 2SB527 (NTE292) & 2SD358	TO-3 Metal Cased	(see also; Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930 and likely many others) (Alternate versions of QX-949 & QX-949A regarding output transistors)
Pioneer	QX-4000	Stereo Receiver	4 ea.	Toshiba	2SC789 (NTE152)	TO-3 Metal Cased	(2SC789 (NTE152) also used in Pioneer QX-646, QX-4000 & SX-535)
Pioneer	QX-8000	Stereo Receiver	4 ea.		2SC793 (NTE130)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Pioneer	SA-608 / SA-6800	Integrated Amplifier	2 ea.		2SB527 (NTE292) & 2SD357 (NTE291)	Discrete Epoxy TO-220
Pioneer	SA-708 / SA-7800	Integrated Amplifier	2 ea.		2SA1075 (NTE93) & 2SC2525 (NTE92)	Discrete Epoxy	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	SA-6500 II	Integrated Amplifier	2 ea.	NEC	2SB616A & 2SD586	Discrete Epoxy	VERY DIFFICULT TO OBTAIN and doesn't seem to easily 'cross' to anything that we've found.
Pioneer	SA-7800	Integrated Amplifier	2 ea.		2SA1075 (NTE93) & 2SC2525 (NTE92)	Discrete Epoxy	(see also; Kenwood KM-205, Kenwood KM-206, Kenwood KM-208, Pioneer A-40, Pioneer SA-708, Pioneer SA-7800, Pioneer SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	SA-5800	Integrated Amplifier	2 ea.	NEC	2SB773A & 2SD883A	Epoxy TO-220 package	(see also; Pioneer SA-5800, Pioneer SX-720 / SX-3600)
Pioneer	SA-7500	Integrated Amplifier	2 ea.		2SB541 (NTE281) & 2SD388 (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Pioneer	SA-7800	Integrated Amplifier	2 ea.		2SA1075 (NTE93) & 2SC2525 (NTE92)	Discrete Epoxy	(see also; Kenwood KM-205, Kenwood KM-206, Kenwood KM-208, Pioneer SA-708, Pioneer SA-7800, Pioneer SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	SA-9500	Integrated Amplifier	4 ea.	NEC	2SB541 (NTE281) & 2SD388 (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Pioneer	SA-8100	Integrated Amplifier	2 ea.	Toshiba	2SB530 & 2SD370	TO-3 Metal Cased
Pioneer	SA-9500	Integrated Amplifier	2 ea.	NEC	2SB541 (NTE281) & 2SD388 (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Pioneer	SX-434	Stereo Receiver	2 ea.	Sanyo	2SB507D (NTE153) & 2SD313D (NTE152)	Epoxy	(also used in Pioneer SX-434, Pioneer SX-450, Pioneer SX-550)
Pioneer	SX-450	Stereo Receiver	2 ea.		2SB507D (NTE153) & 2SD313D (NTE152)	Epoxy	(also used in Pioneer SX-434, Pioneer SX-450, Pioneer SX-550)
Pioneer	SX-535	Stereo Receiver	2 ea.		2SA489 & 2SC789 (NTE152)	TO-3 Metal Cased	(2SC789 (NTE152) also used in Pioneer QX-646, QX-4000 & SX-535)
Pioneer	SX-550	Stereo Receiver	4 ea.		2SD313 (NTE152)	Epoxy	(also used in Pioneer SX-434, Pioneer SX-450, Pioneer SX-550)
Pioneer	SX-580	Stereo Receiver	2 ea.		STK-0029	Epoxy Power Packs -10 pins ea.
Pioneer	SX-626	Stereo Receiver	4 ea.	Sanken	2SC1111 (NTE280) or 2SC793 (NTE130)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Pioneer	SX-650	Stereo Receiver	2 ea.	Sanken	SP-40W	Epoxy Power Packs -8 pins ea.
Pioneer	SX-680	Stereo Receiver	2 ea.		STK-0039	Epoxy Power Packs -10 pins ea.
Pioneer	SX-720 (SX-3600)	Stereo Receiver	2 ea.	NEC	2SB773A & 2SD883A	Epoxy TO-220 package	(see also; Pioneer SA-5800, Pioneer SX-720 / SX-3600)
Pioneer	SX-727	Stereo Receiver	2 ea.	NEC	2SA649 & 2SD323	TO-3 Metal Cased
Pioneer	SX-727	Stereo Receiver	2 ea.	Toshiba	2SB530 & 2SD370	TO-3 Metal Cased	ALTERNATE VERSION (see also; Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930 and likely many others)
Pioneer	SX-750	Stereo Receiver	2 ea.	NEC	2SB541 (NTE281) & 2SD388 (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Pioneer	SX-780	Stereo Receiver	2 ea.		DARLINGTON STK-0050
Pioneer	SX-820 (aka; SX-3800)	Stereo Receiver	2 ea.	-	2SA1216 (NTE59) & 2SC2922 (NTE58) or 2SA1075 (NTE93) & 2SC2525 (NTE92)	Epoxy - Discrete	(see also; Kenwood KM-205, Kenwood KM-206, Kenwood KM-208, Pioneer A-40, Pioneer SA-708, Pioneer SA-7800, Pioneer SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	SX-828	Stereo Receiver	2 ea.	Toshiba	2SA680 & 2SC1080	TO-3 Metal Cased	(see also; Pioneer SX-828, Pioneer SX-6000 and likely others)
Pioneer	SX-838	Stereo Receiver	2 ea.		2SA747A (NTE281) & 2SC1116 (NTE284) (Alternate version)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Pioneer	SX-838	Stereo Receiver	2 ea.		2SA679 & 2SC1079 (NTE280) (Alternate version)	TO-3 Metal Cased	(see also; Pioneer SA-9100, Pioneer SX-838, Pioneer SX-2500, Sansui Eight (only 2SC1079 (NTE280)), 5000A & 5000X (Some 2SC1079 (NTE280)))
Pioneer	SX-850	Stereo Receiver	2 ea.	Toshiba	2SB531 & 2SD371	TO-3 Metal Cased	(also used in Pioneer SX-850 & Yamaha CR-620)
Pioneer	SX-880 / SX-890	Stereo Receiver	2 ea.	NEC	2SB705A & 2SD745A	Epoxy - Discrete
Pioneer	SX-939	Stereo Receiver	2 ea.	Toshiba	2SB530 & 2SD370 (alternate; 2SB541 (NTE281) & 2SD388 (NTE280))	TO-3 Metal Cased	(see also; Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Pioneer	SX-950	Stereo Receiver	2 ea.		2SB557 (NTE281) & 2SD427 (NTE280)	TO-3 Metal Cased	(see also; Kenwood KA-7100, Marantz 1152DC Integrated Amp, Pioneer SX-950, Technics SA-700A, Yamaha CR-820 and likely others)
Pioneer	SX-990	Stereo Receiver	4 ea.	Sanken	2SC1111 (NTE280)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Pioneer	SX-1000TD	Stereo Receiver	4 ea.	Toshiba	2SC793 (NTE130)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)") (Alternate version) Utilized by a number of different receivers on this page
Pioneer	SX-1000TD	Stereo Receiver	4 ea.	Toshiba	2SC793 (NTE130) & 2SD425 (NTE280)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)") (Alternate version) Utilized by a number of different receivers on this page
Pioneer	SX-1000TW	Stereo Receiver	4 ea.	Toshiba	2SC793 (NTE130)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Pioneer	SX-1010	Stereo Receiver	4 ea.	Sanken	2SA747A (NTE281) & 2SC1116A (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Pioneer	SX-1050	Stereo Receiver	4 ea.	NEC	2SB539 & 2SD287	TO-3 Metal Cased	(also used in Kenwood KR-9940, Pioneer SX-1050, Realistic STA-2000, Realistic STA-2300 and likely others) (could possibly sub NTE 284 & 285)
Pioneer	SX-1080	Stereo Receiver	4 ea.	-	2SB701a & 2SD737a	Epoxy - Discrete
Pioneer	SX-1250	Stereo Receiver	4 ea.	NEC	2SB600 & 2SD555	TO-3 Metal Cased	(see also; Biamp TC/120, Kenwood KR-8010 / KR-8110, Pioneer SX-1250)
Pioneer	SX-1280	Stereo Receiver		NEC	2SB706A & 2SD746A	Epoxy - Discrete	(see also; Pioneer SX-1280 & SX-1980)
Pioneer	SX-1500	Stereo Receiver	4 ea.	Toshiba	2SC793 (NTE130)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)") Utilized by a number of different receivers on this page
Pioneer	SX-2500	Stereo Receiver	4 ea.		2SC1079 (NTE280)	TO-3 Metal Cased	(see also; Pioneer SA-9100, Pioneer SX-838, Pioneer SX-2500, Sansui Eight (only 2SC1079 (NTE280)), 5000A & 5000X (Some 2SC1079 (NTE280)))
Pioneer	SX-1980	Stereo Receiver	6 ea.	NEC	2SB706A & 2SD746A	Epoxy - Discrete	(see also; Pioneer SX-1280 & SX-1980)
Pioneer	SX-3600 (SX-720)	Stereo Receiver	2 ea.	NEC	2SB773A & 2SD883A	Epoxy TO-220 package	(see also; Pioneer SA-5800, Pioneer SX-720 / SX-3600)
Pioneer	SX-3700 (SX-820)	Stereo Receiver	2 ea.	-	2SA1216 (NTE59) & 2SC2922 (NTE58) or 2SA1075 (NTE93) & 2SC2525 (NTE92)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	SX-3800	Stereo Receiver	2 ea.	Sanken	2SA1216 (NTE59) & 2SC2922 (NTE58) or 2SA1075 (NTE93) & 2SC2525 (NTE92)	Epoxy - Discrete	(see also; Kenwood Basic M-1D, KM-205, KM-206, KM-207, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Yamaha M-80)
Pioneer	SX-3900	Stereo Receiver	4 ea.	Fuji?	2SA1076 & 2SC2526	Epoxy - Discrete
Pioneer	SX-6000	Stereo Receiver	4 ea.	Toshiba	2SC1080	TO-3 Metal Cased	(see also; Pioneer SX-828, Pioneer SX-6000 and likely others)

Pioneer	SX-9000	Stereo Receiver	4 ea.		2SC1115 (NTE280)	TO-3 Metal Cased
Pioneer	SX-9930	Stereo Receiver	2 ea.	Toshiba	2SB530 & 2SD370 (alternate; 2SB541 (NTE281) & 2SD388 (NTE280))	TO-3 Metal Cased	(see also; Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
SAE OUTPUT TRANSISTORS
SAE	201	Amplifier	4 ea.	Toshiba	2SD424 (NTE284) or 2SB554 (NTE285)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
SANYO OUTPUT TRANSISTORS
SANYO	2033	Stereo Receiver	1 ea.	STK	STK 0039	Large Power Pack / IC


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
SANSUI OUTPUT TRANSISTORS
Sansui	7 (SEVEN)	Stereo Receiver	4 ea.	Sanken or Toshiba	2SA663 or 2SA793 & 2SC1111 (NTE280)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Sansui	8 (EIGHT)	Stereo Receiver	4 ea.	Toshiba	2SC1079 (NTE280)	TO-3 Metal Cased	(see also; Pioneer SA-9100, Pioneer SX-838, Pioneer SX-2500, Sansui Eight (only 2SC1079 (NTE280)), 5000A & 5000X (Some 2SC1079 (NTE280)))
Sansui	221	Stereo Receiver	1 ea.		STK 013	Large Power Pack / IC
Sansui	350	Stereo Receiver	4 ea.	Hitachi	2SC1030 (NTE280)	TO-3 Metal Cased
Sansui	661	Stereo Receiver	2 ea.	Sanken	2SC1111 (NTE280)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Sansui	701	Stereo Receiver	2 ea.	Toshiba	2SB681 (NTE285) & 2SD551 (NTE284)	TO-3 Metal Cased	(see also; Sansui 701, Sansui G-6000, Sansui G-7000, Sansui G-8500DB)
Sansui	801	Stereo Receiver	2 ea.	Sanken	2SA745 (NTE281)B & 2SC1403 (NTE284)B	TO-3 Metal Cased	(see also; Marantz 2240, 4300, Sansui AU-317, Sansui G-801, Sansui G-8000, Yamaha CA-1010, Yamaha CA-2010, and likely others)
Sansui	990DB	Stereo Receiver	4 ea.	Toshiba	2SB554 (NTE285) & 2SD424 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)
Sansui	2000	Stereo Receiver	4 ea.	Sanken	2SD202 (possible alternate 2CS493)	TO-3 Metal Cased
Sansui	2000A	Stereo Receiver
Sansui	2000X	Stereo Receiver	4 ea.	Sanken	2SC1111 (NTE280)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Sansui	4000	Stereo Receiver	4 ea.		2SC1116 (NTE284) (subs can be Sylvania / ECG 162 or NTE 284)	TO-3 Metal Cased	(ALTERNATE VERSION) (see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Sansui	4000	Stereo Receiver	4 ea.	Toshiba	2SD213 (subs can be NTE 162)	TO-3 Metal Cased	ALTERNATE VERSION
Sansui	5000	Stereo Receiver	4 ea.	Toshiba	2SD118 (NTE280)	TO-3 Metal Cased
Sansui	5000A	Stereo Receiver	2 ea.	Sanken	2SD118 (NTE280) & 2SC2607	TO-3 Metal Cased	(see also; Kenwood KR-8050, Sansui 5000A)
Sansui	5000A	Stereo Receiver	4 ea.	Toshiba	2SD426 (NTE328)	TO-3 Metal Cased	ALTERNATE VERSION (also used in Realistic SA-2000, STA-235B, Sansui 5000A)
Sansui	5000A	Stereo Receiver	2 ea.	Toshiba	2SC1079 (NTE280) & 2SD118 (NTE280)	TO-3 Metal Cased	ALTERNATE VERSION (see also; Pioneer SA-9100, Pioneer SX-838, Pioneer SX-2500, Sansui Eight (only 2SC1079 (NTE280)), 5000A & 5000X (Some 2SC1079 (NTE280)))
Sansui	5000A	Stereo Receiver	4 ea.	Toshiba	2SD118 (NTE280)	TO-3 Metal Cased	ALTERNATE VERSION
Sansui	5000X	Stereo Receiver	4 ea.	Toshiba	2SC1079 (NTE280)	TO-3 Metal Cased	(see also; Pioneer SA-9100, Pioneer SX-838, Pioneer SX-2500, Sansui Eight (only 2SC1079 (NTE280)), 5000A & 5000X (Some 2SC1079 (NTE280)))
Sansui	5050	Stereo Receiver	2 ea.		2SC1445 & 2SA765	TO-66 Metal Cased
Sansui	6060	Stereo Receiver
Sansui	7070	Stereo Receiver	2 ea.	Sanken	2SA746 (NTE219) & 2SC1115 (NTE280) (Alternate 2SC1111 (NTE280))	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Sansui	7900Z	Stereo Receiver	2 ea.	Sanken	2SA1169 (NTE93) & 2SC2773 (NTE92)	Epoxy - Discrete	2SA1106 (NTE37) crosses to NTE 37 & 2SC2581 (NTE36) substitute NTE 36 (Also used in Sansui 7900Z, Z-7000 & Yamaha M-80)
Sansui	8080	Stereo Receiver	4 ea.	Sanken	2SC1116A (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Sansui	8080DB	Stereo Receiver		Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Sansui	9090	Stereo Receiver	4 ea.	Toshiba	2SD424 (NTE284) or 2SB554 (NTE285)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)
Sansui	9090DB	Stereo Receiver	8 ea.	Sanken	2SC1116A (NTE284)	TO-3 Metal Cased
Sansui	AU-1X	Integrated Amplifier	8 ea.	Sanken	2SA1068 / 2SC2493	TO-3 Metal Cased
Sansui	AU-317	Stereo Receiver	2 ea.	Sanken	2SA745 (NTE281) & 2SC1403 (NTE284)	TO-3 Metal Cased	(also used in Marantz 4300, Sansui AU-317)
Sansui	AU-417	Integrated Amplifier	2 ea.		2SA1105 & 2SC2580	Epoxy cased	(see also; Kenwood KA-405, Onkyo A-7040 & Sansui AU-417)
Sansui	AU-555A	Stereo Receiver	2-4? ea.	Hitachi	2SC1030 (NTE280)	TO-3 Metal Cased
Sansui	AU-710	Integrated Amplifier	2 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Sansui	AU-717	Integrated Amplifier	2 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Sansui	AU-9900 / AU-9900A / AU-11000 / AU-11000A	Integrated Amplifier	4 ea.	NEC	2SB541A (NTE281) & 2SD388A (NTE280)	TO-3 Metal Cased	(see also; Concept 5.5, Marantz 2238, Pioneer QX-949 / QX-949A, Pioneer SA-7500, Pioneer SA-9500, Pioneer SX-727, Pioneer SX-750, Pioneer SX-939, Pioneer SX-9930, Sansui AU-9900 / 9900A, Sansui AU-11000 / 11000A and likely many others)
Sansui	G-5000	Stereo Receiver	2 ea.	NEC	2SB545A & 2SD188A	TO-3 Metal Cased
Sansui	G-6000	Stereo Receiver	2 ea.	Toshiba	2SB681 (NTE285) & 2SD551 (NTE284)	TO-3 Metal Cased	(see also; Sansui 701, Sansui G-6000, Sansui G-7000, Sansui G-8500DB)
Sansui	G-7000 / 701	Stereo Receiver	2 ea.	Sanken	2SA747A (NTE281) & 2SC1116 (NTE284)	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Sansui	G-7000 / 701	Stereo Receiver	2 ea.	Toshiba	2SB681 (NTE285) & 2SD551 (NTE284)	TO-3 Metal Cased	(see also; Sansui 701, Sansui G-6000, Sansui G-7000, Sansui G-8500DB) ALTERNATE VERSION
Sansui	G-7700	Stereo Receiver	2 ea.	Sanken	2SA1106N (NTE37) 2x 2SC2581N (NTE36)		(see also Sansui G-7700, Sansui R70, Yamaha M-50)
Sansui	G-8000 / 801	Stereo Receiver	2 ea.	Sanken	2SA745 (NTE281)B & 2SC1403B (NTE284)	TO-3 Metal Cased	(see also; Marantz 2240, 4300, Sansui AU-317, Sansui G-801, Sansui G-8000, Yamaha CA-1010, Yamaha CA-2010, and likely others)
Sansui	G-8500DB	Stereo Receiver	2 ea.	Toshiba	2SB681 (NTE285) & 2SD551 (NTE284)	TO-3 Metal Cased	(see also; Sansui 701, Sansui G-6000, Sansui G-7000, Sansui G-8500DB)


Sansui	QR-4500	Quadraphonic / 4-Channel / Stereo Receiver	8 ea.	NEC	2SA188	TO-3 Metal Cased
Sansui	QR-6500 / QRX-6500	Quadraphonic / 4-Channel / Stereo Receiver	8 ea.	Toshiba	2SC793 (NTE130)	TO-3 Metal Cased	(see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Sansui	QRX-7500	Quadraphonic / 4-Channel / Stereo Receiver	8 ea.	Toshiba (typically)	2SA744 & 2SC1111 (NTE280) OR 2SA756 & 2SC1030 (NTE280)	TO-3 Metal Cased	This model can have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer SX-626, Pioneer SX-990, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Sansui	QRX-9001	Quadraphonic / 4-Channel / Stereo Receiver	4 ea.	Sanken	2SA746 (NTE219) & 2SC1115 (NTE280)	TO-3 Metal Cased	We have had a few of these and between those and what is out on the web, there seems to be an original design issue with putting the power amp section into 2-Channel mode for 'double power'.

Sansui	R70	Stereo Receiver			2SA1106 (NTE37) & 2SC2581 (NTE36)	Epoxy - Discrete	2SA1106 (NTE37) crosses to NTE 37 & 2SC2581 (NTE36) substitute NTE 36) (see also Sansui G-7700, Sansui R70, Yamaha M-50)
Sansui	Z-7000 / Z-7000X	Stereo Receiver	2 ea.	Sanken	2SA1169 (NTE93) & 2SC2773 (NTE92)	Epoxy - Discrete	2SA1106 (NTE37) crosses to NTE 37 & 2SC2581 (NTE36) substitute NTE 36 (Also used in Sansui 7900Z, Z-7000 & Yamaha M-80) May also fit Sansui 9900Z?
Sansui	Z-9000 / Z-9000X	Stereo Receiver	2 ea.	Sanken	2SA1170 & 2SC2774	Epoxy - Discrete	May also fit Sansui 9900Z?

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
SHERWOOD OUTPUT TRANSISTORS

Sherwood	S-8300CP	Stereo Receiver	2 ea.		2SB686 (NTE37) & 2SD716 (NTE36)	Epoxy - Discrete	(also used in Marantz 1060B, Sherwood S-8300CP & Yamaha CA-410-II)



BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
SONY OUTPUT TRANSISTORS

Sony	STR-DA3200ES	A/V Receiver	3X ea.	SK	MN2488 & MP1620	Epoxy - Discrete
Sony	STR-DE345	A/V Receiver	-	SK	MN2488 & MP1620	Epoxy - Discrete

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
TAPCO OUTPUT TRANSISTORS
TAPCO	CP-500M	Power Amplifier	16	MOTOROLA	2SJ9017	TO-3 Metal Cased	(Subs; ECG60, NTE 60, RCA SK9034)

BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
TECHNICS OUTPUT TRANSISTORS

Technics	SA-222	Stereo Receiver	-		STK 2028	Epoxy Power Packs
Technics	SA-700A	Stereo Receiver	2 ea.		2SD427 (NTE280) 4x 2SB557 (NTE281)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KA-7100, Marantz 1152DC Integrated Amp, Pioneer SX-950, Technics SA-700A, Yamaha CR-820 and likely others)
Technics	SA-5360	Stereo Receiver	2 ea.		STK 0182	Epoxy Power Packs


BRAND	MODEL	UNIT TYPE	QNTY UTILIZED	DEVICE MFG	OUTPUT TRANSISTORS / POWER TRANSISTORS / DEVICE ID	CASE STYLE	NOTES
YAMAHA OUTPUT TRANSISTORS
Yamaha	A-550	Integrated Amplifier	2 ea.		NEC 2SD587A, NEC 2SB617, SK Replacements SK3934, SK3933	Epoxy - Discrete / TO-220
Yamaha	CA-410-II	Integrated Amplifier	2 ea.		2SB686 (NTE37) & 2SD716 (NTE36)	Epoxy - Discrete	(also used in Marantz 1060B, Sherwood S-8300CP & Yamaha CA-410-II)
Yamaha	CA-810	Integrated Amplifier	2 ea.	Toshiba	2SB555 (NTE281) & 2SD425 (NTE280)	TO-3 Metal Cased	(also used in Yamaha CA-810 & Yamaha CR-1020 & Yamaha CR-3020)
Yamaha	CA-1010	Integrated Amplifier	2 ea.	Sanken	2SA745 (NTE281)B & 2SC1403 (NTE284)B	TO-3 Metal Cased	(see also; Marantz 2240, 4300, Sansui AU-317, Sansui G-801, Sansui G-8000, Yamaha CA-1010, Yamaha CA-2010, and likely others)
Yamaha	CA-2010	Integrated Amplifier	4 ea.	Sanken	2SA745 (NTE281)B & 2SC1403 (NTE284)B	TO-3 Metal Cased	(see also; Marantz 2240, 4300, Sansui AU-317, Sansui G-801, Sansui G-8000, Yamaha CA-1010, Yamaha CA-2010, and likely others)
Yamaha	CR-220	Stereo Receiver	2 ea.	SK	2SA771 & 2SC1986	Epoxy - Discrete
Yamaha	CR-240	Stereo Receiver	2 ea.		IG 03000	Epoxy Power Packs
Yamaha	CR-450	Stereo Receiver	4 ea.		2SB596 & 2SD526	Epoxy - Discrete
Yamaha	CR-620	Stereo Receiver	2 ea.		2SB531 & 2SD371	TO-3 Metal Cased	(also used in Pioneer SX-850 & Yamaha CR-620)
Yamaha	CR-640	Stereo Receiver	2 ea.		IG 029809	Epoxy Power Packs
Yamaha	CR-800	Stereo Receiver	2 ea.	Toshiba	2SA663 & 2SC793 (NTE130)	TO-3 Metal Cased	Some of these models may have a couple of different combinations depending on the version. (see also; Kenwood KR-5200, Pioneer QX-8000, Pioneer SX-626, Pioneer SX-990, Pioneer SX-1000TD, Pioneer SX-1000TW, Pioneer SX-1500, Sansui 'Seven', Sansui 661, Sansui 2000X, Sansui 7070, Sansui QR-6500 / QRX-6500, Sansui QRX-7500, Yamaha CR-800 & some references indicated as same as Toshiba "2SC793 (NTE130)")
Yamaha	CR-820	Stereo Receiver	2 ea.	Toshiba	2SB557 (NTE281) & 2SD427 (NTE280)	TO-3 Metal Cased	(see also; Kenwood KA-7100, Marantz 1152DC Integrated Amp, Pioneer SX-950, Technics SA-700A, Yamaha CR-820 and likely others)
Yamaha	CR-840	Stereo Receiver		Yamaha	IG02970	Epoxy Power Pack

Yamaha	CR-1020	Integrated Amplifier	2 ea.	Toshiba	2SB555 (NTE281) & 2SD425 (NTE280)	TO-3 Metal Cased	(also used in Yamaha CA-810 & Yamaha CR-1020 & Yamaha CR-3020)
Yamaha	CR-1040	Stereo Receiver	2 ea.	Yamaha	Yamaha IG-02960	Epoxy Power Pack
Yamaha	CR-2020	Stereo Receiver	2 ea.	Toshiba	2SD424 (NTE284) & 2SB554 (NTE285)	TO-3 Metal Cased	(see also; Adcom GFA555, Marantz 2285, Onkyo TX-8500, Pioneer SPEC-4, Pioneer SX-1010, SAE 201, Sansui 9090 & 9090DB, Yamaha CR-2020, Yamaha CR-3020 and likely others)
Yamaha	CR-2040	Stereo Receiver	4 ea.		2SB755, and / or 2SD845 (alternate version; 2SB700 & 2SD736)	Epoxy - Discrete	(also used in JVC JR-3SS, Onkyo TX-61 & Onkyo TX-5000 & Yamaha CR-2040)
Yamaha	CR-3020	Stereo Receiver	4 ea.	Toshiba	2SD424 (NTE284) & 2SB554 (NTE285) (alternate version: 2SA747A (NTE281) & 2SC1116 (NTE284) )	TO-3 Metal Cased	(see also; Adcom GFA555, Kenwood 600, KA-6100, KA-6150, KR-6030, KR-8050 (re: 2SC1116 (NTE284)), Kenwood KR-9400, Kenwood KR-10000 III, Kenwood KR-Nine G, Kenwood Eleven-III, Marantz 1250, Marantz 2285, Onkyo TX-4500-II, Onkyo TX-8500, Pioneer QX-747, Pioneer QX-949 / 949A, Pioneer SX-838, Pioneer SX-1010, Realistic SA-2001, SAE 201, Sansui 4000 (re: 2SC1116 (NTE284)), Sansui 5000X, Sansui 8080 (re: 2SC1116 (NTE284)), / 8080DB, Sansui 9090 / 9090DB (re: 2SC1116 (NTE284)), Sansui AU-710, Sansui AU-717, Sansui AU-11000, Sansui BA-5000, Sansui G-701 / G-7000, Sony STR-7065, Technics SA-5560 & SA-5570, Technics SE-9600, Yamaha B-1, Yamaha CR-1000, Yamaha CR-2020, Yamaha CR-3020, and likely others)
Yamaha	HTR-5460	A/V Receiver	? ea.	SK	2SA1695 & 2SC4468 (may have been replacements)	Epoxy - Discrete
Yamaha	M-50	Power Amplifier	4 ea.	SK	2SA1106 (NTE37) & 2SC2581 (NTE36)	Epoxy - Discrete	(see also Sansui G-7700, Sansui R70, Yamaha M-50)
Yamaha	M-80	Power Amplifier	-	SK	SanKen 2SA1169 (NTE93), 2SA1216 (NTE59), 2SC2773 (NTE92), & 2SC2922 (NTE58)	Epoxy - Discrete	(see also; Kenwood KM-205, KM-206, KM-208, Pioneer A-40, SA-708, SA-7800, SX-3700 (aka SX-820), Pioneer SX-3800, Sansui 7900Z, Z-7000, & Yamaha M-80)
Yamaha	R-3	Stereo Receiver	2 ea.	SK	SK 2SA1102 & SK 2SC2577 (may have been replacements)	Epoxy - Discrete
Yamaha	R-500	Stereo Receiver	2 ea.		STK2040	Epoxy Power Packs	And uses Yamaha Voltage Amplifier IC packs / Chips IG 04540 / Darlington STK3056
Yamaha	R-700	Stereo Receiver	2 ea.		STK1050-II	Epoxy Power Packs	And uses Yamaha Voltage Amplifier IC packs / Chips IG 04540 / Darlington STK3056
Yamaha	RX-700U	Stereo Receiver	2 ea.		2SA1265 & 2SC3183	Epoxy - Discrete	(See also; HK PM645 VXI, Yamaha R-700U)
Yamaha	R-900	Stereo Receiver	2 ea.		STK-1070II	Epoxy Power Packs
Yamaha	R-1000	Stereo Receiver	2 ea.		Yamaha "X-Processor" IC packs IG 04890 / STK-7100	Epoxy Power Packs	Yamaha Voltage Amplifier IC packs / Chips IG 04870 / Darlington STK3106

We will be listing MANY more units as time allows.

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Again, we do not do any work on 'customers' equipment here at Oak Tree Enterprises, LLC. We only restore and sell our own inventory.

OUTPUT TRANSISTOR STEREO RECEIVER / AMPLIFIER CROSS-REFERENCE CHART

OUTPUT TRANSISTOR STEREO RECEIVER / AMPLIFIER CROSS-REFERENCE CHART