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Purveyors of Electronic, Musical and Vintage goods from then, now and in between. 
Since 1982.

ELECTRONIC BENCH TEST EQUIPMENT VINTAGE & USED

 

Vintage Electronic Test Equipment / Bench Test Gear
Refurbished & tested, used, second hand vintage electronic test gear / equipment, such as Oscilloscopes, Volt meters, Ohm meters, VTVM's, DVM's, Tube Testers / checkers Tau-Tron S5401 Transmission Test Set Used Audio Frequency / AF, Signal Sine Wave generators by B&K, Heathkit, RCA, Eico. Triplett 630-PL and Triplett 310 VOM's for tube amps & repair bench for repairing tube & transistor radios. Also power supplies, variac vari-ac, Fluke, O-scopes and Load resistors.

 

 

 
2-Amp_variable-DC_Power-Supply_web.jpg (10470 bytes)            2-Amp_variable-DC_Power-Supply_collage.jpg (69386 bytes)
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2-AMP DC VARIABLE OUTPUT POWER SUPPLY
 FOR SALE
Great for general purpose bench work. Supplies enough current to power most DC
devices for short of long term use. This is our 'Go To First' power supply on our test benches.
Supplies 3, 4.5, 6, 9, and 12 volts very accurately and is completely filtered as is shown on the oscilloscope output.
All voltages test to rated specs. We also un-box and bench check each unit prior to shipping to absolutely ensure 
performance upon delivery. Output is via heavy duty binding / banana posts. Each unit is fused
for protection. This is one of the most useful and high quality power supplies we have found and 
it's very affordable!
NEW AND IN STOCK!

$28.99

 

5-10_amp_vari-AC_variable_0-130_volt_AC_power_supply


         NEW ADDITION 6/3/09
(click on above thumbnails to enlarge photos)

5 or 10-AMP Vari-AC
VARIABLE AC VOLTAGE POWER SUPPLY / ADJUSTER

for sale
Great quality, Vari-AC. Externally fused. Grounded Input AC cord and Isolated and Dual, Grounded 3-prong outputs. Varies AC voltage from 0-130 volts. Available in either a 5 amp or 10 amp version. These are superior quality from the last version we were able to get. The AC outlets are much more heavy duty and won't "gut" themselves.
Some knowledge of electronic principles advised to purchase or use one of these.
*

Specs:

- Varies line voltage between 0~130VAC.
- Built-in ammeter shows current draw
-Replaceable fuse protection
- Three prong grounded cord and dual sockets provide convenience and safety
- Specifications120V, 60Hz Output 0~130VAC Current10A, 1.3KVA 10A AGC
- Available in either a 5 amp or 10 amp version


NEW
                            $179.99 5-Amp
(special order item)
                              $199.99 10-Amp (special order item)

*Again, Vari-AC's can have many uses. Varying the speed of a motor, bringing voltage up slowly on gear for trouble-shooting, getting "brown AC" to guitar tube amps, and controlling the brightness of a lamp are only a few. It is a tool. Some "tools" are designed for many "known uses", but in the hands of qualified personnel, can be used for other "non-designed" uses. Improperly used, this "tool" can be dangerous, even fatal both to the operator and to the equipment. No warranties are expressed or implied. If you do not understand the use of a Vari-AC on a film projector, DO NOT PURCHASE, OR USE ONE!




 
     

NEW ITEM
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NEW
TENMA OSCILLOSCOPE / O-SCOPE
20MHz, Analog, Dual-Trace Oscilloscope with Function Generator

for sale
Dual channel Dual trace Builtin 1MHz function generator with sine, square and triangle wave output 6" rectangular CRT with internal graticule 2KV acceleration voltage High sensitivity 1mV/div Display modes: CH-1, CH-2, DUAL, ALT, CHOP, ADD, CH-2 INV Input coupling: AC/GND/DC CH-1 output signal Sweep modes: A, XY, X10 magnification Trigger modes: AUTO, NORM, TVV, TVH Trigger sources: CH-1, CH-2, ALT, LINE, EXT Trigger slope: + or Z axis input for intensity modulation.
More info coming
TENMA OSCILLOSCOPE 72-6805
MSRP $520.00
$449.
BK_Precision_3010_Function_Generator_Web  

    BK_Precision_3010_Function_Generator_Collage     


NEW LISTING 2/8/10
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BK PRECISION
3010
FUNCTION / AF GENERATOR
for sale

Frequency range 1 Hz to 1 MHz. Generates Sine, Square and Saw-tooth waveforms. Adjustable D.C. offset. Looks and works great. All functions seem to check fine. May need a slight calibration, but was very close to our bench unit and with our Frequency Counter. The wave forms also looked great on our scope. Utilizes standard "Banana" style probes / leads (not included). Sorry no manual with it. Detachable AC cord has been modified / permanently attached. Includes our standard 30 day limited warranty for test gear.

(
we may decide to keep this for shop use as it features adjustable 'DC Offset', but until that time, it's available for sale)
Cond. 8.5

$149.

 

Triplett_Mighty-Mite_310_VOM_web    Triplett_Mighty-Mite_310_VOM_collage

        NEW LISTING 8/4/11
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VINTAGE / ORIGINAL
TRIPLETT
310
 MULTI-METER
ANALOG 'VOM'
'The Mighty Mite VOM'
Circa 1963

for sale
 Unit in 'Like New', unused condition. No cracks in window or rust. All original knobs.

Features:

- 18 Ranges
- 5 DC Voltage Ranges
- 5 AC Voltage Ranges
- 4 DC Current Ranges
- 4 Resistance Ranges
- Drop Resistant High-Impact Case
- Diode Overload Protection with fused Resistance Ranges
- Single Enclosed Range Switch


Specifications / Specs:


DC Voltage Ranges: 0-3, 12, 60, 300, 1200 (20,000 Ohms per Volt)
Accuracy: 3% of Full Scale
AC Voltage Ranges: 0-3, 12, 60, 300, 1200 (5,000 Ohms per Volt)
Accuracy: 4% of Full Scale
DC Current Ranges: 600uA, 6mA, 60mA, 600mA
Accuracy: 3% of Full Scale
Max. Voltage Drop: 330mV
Resistance Ranges: 0-20K Ohms, 200K Ohms, 2M Ohms, 20M Ohms (200 Ohms center scale on lowest range)
Accuracy: 3% of Scale Length


Original case in LIKE NEW condition. Includes a copy of the owners / users manual. Attention, you will need special batteries to utilize this meter and they are not included, nor do we have access to them. We tested it with our bench power supplies. The required batteries are:
1 - 12V, 1 - N-Cell.
Includes our standard 30 day warranty for test gear (excluding blowing it up by injecting voltage when in Ohms position or similar). Measures 2.75" wide x 4.25" tall and 1.25" deep.
Cond. 10

$129.

 


      NEW ITEM 11/8/12
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EICO RESISTANCE-CAPACITANCE-COMPARATOR BRIDGE
EICO CAPACITOR TESTER

EICO 950A
#
7946
Circa late 1950's / early 1960's

for sale
EICO 950A Capacitor Checker / Tester. These are incredibly versatile instruments. They can compare / test resistor and capacitors as well as chokes and transformers. Since they can actually 'test at voltage' for leakage, they are so much more 'usable' than most any 'modern', digital meter. Those don't test at the voltages these are capable of, thus aren't really much good for testing for 'leakage'. These are since they can actually output a 1kHz tone at 500 volts. So here's the deal. We use these here in the shop, along with the Heathkit IT-11 / IT-28 and C3. Depends on what mood the tech is in. Really all do pretty much the same thing.

EICO RESISTANCE-CAPACITANCE-COMPARATOR BRIDGE FEATURES;

- Capacitance measurement of Mica, Paper, Electrolytic, and Ceramic Capacitors

However, unless one has been COMPLETELY re-capped / restored, they're just pretty 'boat anchors'. A piece of test gear is only as good as "how close it get's to 100% accuracy". These are 45+ year old units, and while they can be brought back to their former glory (and then some), unless it's been done by someone qualified and correctly, then again, they're just 'boat anchors' (and I'm not talking about just powering it up on a vari-ac and making sure not smoke comes out). To be usable ALL the electrolytic and foil capacitors need to be changed with fresh and tested caps (difficult to find 500volt electrolytics). Carbon resistors are tested. Since many of these were sold as 'kits', one of the most important process we do is to inspect and most likely correct, any wiring errors (meaning the person that assembled the kit, connected wires and parts to the wrong place...and we usually find 2-4 on most units). We then test / replace all tubes. Once all of that is done, and ONLY THEN should the unit be powered up, and that should only be done on a vari-ac with an ammeter. Following the 'parts restoration' calibration and testing can be undertaken. Once that's completed and signed off on, then the unit will have final detailing done. Since all of the above work represents many hours of tech time (typically 7-10 hours) and parts, it scares off most initial / newbie buyers of these, so we are offering it two ways. 'As-Found' or 'Completely Refurbished'.
Cosmetic COND. 8.5
$650. restored
*
or
$149. as-is, untested, and at this point not powered-up (and no we wouldn't 'power it up' prior to restoration)


*Please allow 2-6 weeks for restoration


 



 NEW ITEM
(Click on above thumbnails to enlarge photos)

EICO RF SIGNAL GENERATOR
EICO 322
#
3838
Circa late 1950's / early 1960's

for sale
EICO 322 Capacitor Checker / Tester. These are great for radio servicing / aligning AM and FM IF stages, checking RF stages and has a 400Hz Audio test tone. However, unless one has been COMPLETELY re-capped & restored, they're just pretty 'boat anchors'. A piece of test gear is only as good as "how close it get's to 100% accuracy". These are 45+ year old units, and while they can be brought back to their former glory (and then some), unless it's been done by someone qualified and correctly, then again, they're just 'boat anchors' (and I'm not talking about just powering it up on a vari-ac and making sure not smoke comes out). To be usable ALL the electrolytic and foil capacitors need to be changed with fresh and tested caps. Carbon resistors must be tested. Since many of these were sold as 'kits', one of the most important process we do is to inspect and most likely correct, any wiring errors (meaning the person that assembled the kit, connected wires and parts to the wrong place...and we usually find 2-4 on most units). We then test / replace all tubes. Once all of that is done, and ONLY THEN should the unit be powered up, and that should only be done on a vari-ac with an ammeter. Following the 'parts restoration' calibration and testing can be undertaken. Once that's completed and signed off on, then the unit will have final detailing done. Since all of the above work represents many hours of tech time (typically 7-10 hours) and parts, it scares off most initial / newbie buyers of these, so we are offering it two ways. 'As-Found' or 'Completely Refurbished'.
EICO 322 RF GENERATOR
Cosmetic COND. 8.5
$495. restored*
or
$119. as-is, untested, and at this point not powered-up (and no we wouldn't and won't 'power it up' prior to restoration)


*Please allow 2-6 weeks for restoration

 

 

     

NEW ITEM 11/30/12
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HEATHKIT CONDENSER / CAPACITOR CHECKER / TESTER
HEATHKIT C-3
Circa early 1960's
for sale
Heathkit Condenser Checker / Tester. Great way to check capacitors. Since they can actually 'test at voltage' for leakage, they are so much more 'usable' than most any 'modern', digital meter. Those don't test at the voltages these are capable of, thus aren't really much good for testing for 'leakage'. These are since they can actually output a 1kHz tone at 450 volts. So here's the deal. We use these here in the shop, along with the Heathkit IT-11 / IT-28. Depends on what mood the tech is in. Really all do pretty much the same thing.

HEATHKIT CONDENSER CHECKER FEATURES;

- Capacitance measurement of Mica, Paper, Electrolytic, and Ceramic Capacitors

However, unless one has been COMPLETELY re-capped / restored, they're just pretty 'boat anchors'. A piece of test gear is only as good as "how close it get's to 100% accuracy". These are 45+ year old units, and while they can be brought back to their former glory (and then some), unless it's been done by someone qualified and correctly, then again, they're just 'boat anchors' (and I'm not talking about just powering it up on a vari-ac and making sure not smoke comes out). To be usable ALL the electrolytic and foil capacitors need to be changed with fresh and tested caps (difficult to find 500volt electrolytics). Carbon resistors are tested. Since many of these were sold as 'kits', one of the most important process we do is to inspect and most likely correct, any wiring errors (meaning the person that assembled the kit, connected wires and parts to the wrong place...and we usually find 2-4 on most units). We then test / replace all tubes. Once all of that is done, and ONLY THEN should the unit be powered up, and that should only be done on a vari-ac with an ammeter. Following the 'parts restoration' calibration and testing can be undertaken. Once that's completed and signed off on, then the unit will have final detailing done. Since all of the above work represents many hours of tech time (typically 7-10 hours) and parts, it scares off most initial / newbie buyers of these, so we are offering it two ways. 'As-Found' or 'Completely Refurbished'.
Cosmetic COND. 8.5
$550. restored
*
or
$149. as-is, untested, and at this point not powered-up (and no we wouldn't 'power it up' prior to restoration)


*Please allow 2-6 weeks for restoration

 

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RCA
MODEL WV-76A
AC VTVM

 FOR SALE
Serial # 1057
needs probe(s). Untested, but does power up and meter responds. Not tested beyond that.  Appears

cosmetically in good cond. Meter
window slightly scuffed, no cracks. Overall cosmetic cond. 7.5

$45.


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SENCOR
TRC-4
Transistor checker

 FOR SALE
 Unopened crack in VU window visible in photo. Seems to work. Battery powered. No manual.
Cond. 7

$39.


NEW LISTING
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B&K
960
#603677
TRANSISTOR RADIO ANALYST


 These are great "all-in-one" units, however this one needs restoration or use for parts. Will need tubes at least. When the two tubes were installed, the tone generator worked at 3.1kHz. The tubes are not included.
Cond. 5
As-Is

$39.

SOLD 1/31/14
SHIPPING TO FLORIDA



 
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SOLA
CVT
MODEL 63-13-114
Constant Voltage Transformer 
AC Line Power Conditioner

 FOR SALE
 Designed to hold a constant voltage output of 120 VAC + within a range of input voltages. It is designed for use between 95-130 VAC. We input a variety of voltages with the following results:
Input:                    Output:
30 V          =           112V
50 V          =           116V
60 V          =           118V
80 V          =           121V
100 V          =          123V
115 V          =           125V
125V          =           126V

It is rated for a maximum current of 1.17amps. Unit in very good condition and works great! Measures 14" X 5.5" X 5.5" and weighs 18lbs.
Cond. 9

$59.

 


     

             NEW LISTING 6/13/12
(CLICK ABOVE PHOTOS TO ENLARGE)
VINTAGE
HICKOK VIDEO GENERATOR

 
HICKOCK 650C      

for sale
Vintage Hickok 650C, Video Generator. We are selling this as a 'prop' / Restoration project or for parts. Has the following tubes installed; All but one are GE brand, 5Y3, 3x 12AT7, 12AY7, 6H6 Metal tube, 6AB4, 7x 5963 and 1x RCA 12AX7 tubes. Unit and tubes completely untested. Measures 16" x 13.5" x 8" and weighs ~25 lbs unpacked.
Hickok 650C Video Generator
Cosmetic Cond. 7.5
As-is / Prop
$139. (C)
R.R.

 

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Todd
Step-down Transformer

 FOR SALE
Converts up to 220 volts into half voltage. Has standard Edison plug and jack, but could be converted to anything.
$45.

 

 

 

 

 

 

 

 

 

 

      

NEW LISTING 1/24/06

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HP 150A
Oscilloscope
w/152B
DUAL TRACE AMPLIFIER
MODULE
"AS-IS"
FOR SALE
This unit is an impressive piece of test gear.  In its current condition however, it is only suitable as a theatrical prop, display or as a hobbyists, "fixer-upper". The tubes are gone and only the most perfunctory of testing has been performed to see which lights, light. (see above photos).  The 152B Dual Trace Amplifier module is removable and other modules can be inserted for differing functionality.
Measures 6.5" wide x 8" tall and 4.5" deep. Selling As-Is for fix-up or for parts.
HP 150A w/152A module
Cond. AS-IS
$150.



 


NEW LISTING 1/24/06


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HP 151B
Oscilloscope
HIGH GAIN AMPLIFIER
MODULE
"AS-IS"
FOR SALE
This HP-151A, High Gain Amplifier, module is a companion module for the HP 150A Oscilloscope. Suitable for display use or for a fix-up. Functionality unknown as all the tubes are pulled and not included.
Measures 6.5" wide x 8" tall and 4.5" deep. Selling As-Is for fix-up or for parts.
HP 151B
Cond. AS-IS
$40.



 


NEW LISTING 1/24/06


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HP 154A
Oscilloscope
VOLTAGE / CURRENT AMPLIFIER MODULE
"AS-IS"
FOR SALE
This HP-154A, Voltage / Current Amplifier, module is a companion module for the HP 150A Oscilloscope.  Suitable for display use or for a fix-up. Functionality unknown as all the tubes are pulled and not included.
Measures 6.5" wide x 8" tall and 4.5" deep. Selling As-Is for fix-up or for parts.
HP 154A
Cond. AS-IS
$40.



 

MANHATTAN PROJECT ELECTRONIC TEST EQUIPMENT
FROM THE SECRET LOS ALAMOS LABORATORIES

The following electronic laboratory test gear is purported to have come from Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico.

In the late 1930's, the US Department of Defense was looking for a remote and secret location for the classified 'Manhattan Project'. This was the Allied project (led by the United States with participation from the United Kingdom and Canada), during World War II, to develop the first nuclear weapons. The US government used its power of eminent domain in 1942 to take over the Los Alamos, 'Ranch School' and all homesteads of the town.
All information about the town of Los Alamos was highly classified until the bombing of Hiroshima, Japan.
Known at various times as 'Project Y', 'Los Alamos Laboratory', and 'Los Alamos Scientific Laboratory' it is one of two laboratories in the US where classified work towards the design of nuclear weapons was undertaken.
From 1942 to 1946, Los Alamos was responsible for the development of the 'H-bomb' and many other nuclear weapons.
Is it safe to assume that some of this test equipment below was used in those developments?.....


 
LANL / LOS ALAMOS NATIONAL LABORATORIES TEST EQUIPMENT
    

         NEW LISTING 6/13/12
(CLICK ABOVE PHOTOS TO ENLARGE)
VINTAGE LATE 1940'S
GENERAL RADIO COMPANY
DIRECT CURRENT AMPLIFIER
TYPE 715-A
FROM 'LANL'

INFO AND PRICING COMING

 
    

         NEW LISTING 6/13/12
(CLICK ABOVE PHOTOS TO ENLARGE)
VINTAGE LATE 1940'S
GRAY INSTRUMENT COMPANY
MODEL E-3043S-1
FROM 'LANL'

INFO AND PRICING COMING
    

         NEW LISTING 6/13/12
(CLICK ABOVE PHOTOS TO ENLARGE)
VINTAGE LATE 1940'S
GREIBACH INSTRUMENTS CORP.
MODEL 500
MILLIMETER
FROM 'LANL'

INFO AND PRICING COMING

MORE PIECES TO COME
 
     
     


(Click on above thumbnails to enlarge photos)
PLATT
Diced-Foam
Utility Case
Model 2005

FOR SALE
Medium-Duty ABS utility case filled with Diced foam and a finger foam lined lid. NEW! Includes keys and catalog. Slight depression to front edge along handle. Does not affect performance. Measures inside 20" wide x 14" front-back x ~6" high / deep. Weighs 7 lbs loaded with foam.
Cond. 9.5

$59. 1 only

 

 


 

 

 

 

 

BELOW ITEMS ARE SOLD
    

NEW LISTING 7/15/05

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ACCURATE INSTRUMENT CO.
MODEL 151
TUBE TESTER / CHECKER

SOLD 8/5/05

Great little, solid state, emission type tube tester from Accurate Instrument Company. Small and light. Very simple to operate. Great for intermediate shop / hobbyist. Tests for shorts, leakage and quality of emission. Great for Radio / Audio work. We have completely cleaned all the switches and pots. We tested the following tubes consistently with our calibrated, shop B&K 747B tester (12AU7, 12AT7, 12AX7, 6L6, 6V6, 6BQ5 / EL84 & 6W4). Has built-in tube pin straightener. Comes with copy of original manual / tube chart / schematic. Works great and looks near new. It is ready to go.
Unit measures 10.5" wide x 3.5" tall (closed) x 9" deep and weighs 5 lbs unpacked.
Cosmetic cond. 9
As-Is
$139.
SOLD 8/5/05


 
AllenBradleyRemote_collage.jpg (60164 bytes)

Allen & Bradley
1745-PT1
SLC Programmer remote.

SOLD
 




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AMERITEC
AM5XT
VOICE/DATA TRANSMISSION TEST SET

SOLD 3/9/07


I know a little about a lot of different stuff and a lot about a few things, but virtually nothing about Transmission Test Sets. We have had a couple in the past that have sold, but that's all I know. Unit fires up and does respond to it's switches. The last one we had could do a "self-test", but I don't know how to engage a test with this unit. According to some other info on the web:

"The Ameritec AM5eXT-200 Wideband Transmission Test Set is specifically engineered for peak performance for use in the field and in the lab. This easy-to-use unit offers a full range of transmission impairment measurements and a highly versatile signal generator in a single, compact, portable instrument. Approximately the size of a telephone directory, this test instrument fits conveniently on a bench top for use as a laboratory unit. It can also be rack mounted."
"Portable wideband transmission impairment set with sweep function that can be programmed to automatically perform tests across the 20 kH to 200 kHz bandwidth, while simultaneously measuring level and frequency across the same bandwidth."

"100% digital control of all measure, filter, send, and termination functions"
"Front panel with easy-to-locate and easy-to-read areas for each of the major instrument functions."
"Together with the optional internal rechargeable battery pack and soft carrying case, the AM5eXT-200 can be used as a field tester with a battery life of up to six hours of uninterrupted use."
"Performs qualification tests on circuits carrying voice band, high quality audio, and basic rate ISDN and HDSL or other services using up to 200 kHz bandwidth."
"Simultaneously sends signal and measure received signals."
"Provides individual selection of "send and receive terminations" and "on hook/off hook DC hold" circuits."
Testing capabilities include dBm level or dB loss, frequency, frequency response (attenuation distortion), noise (wideband or with filters), noise with tone (wideband or with filters), signal-to-noise ratio (wideband or with filters), noise to ground (wideband or with filters), impulse noise (wideband or with filters), phase jitter, amplitude jitter, micro interruptions, group delay, inter-modulation distortion (4-tone/2-tone), 2- and 4-wire return loss, and transients (including phase and gain hits as well as impulse noise with tone and interruptions)."
"Sophisticated test scripts can be obtained by simply drawing the test sequence. Call scripts are easily developed by dragging, dropping, and interconnecting icons to create a graphical call flow diagram."


 Sorry no manual with it. Measures 8" wide 12" deep 4" tall (with stand folded in) and weighs 7 lbs unpacked. AC cord included. 
Selling As-Is
Cosmetic Cond. 8.5

$299.

SOLD 3/9/07

 

 

 
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ASTRON
MODEL RS-20A
13.8 VOLT
DC POWER SUPPLY
SOLD 4/5/04
Nice 13.8 volt / 20 amp DC power supply. Great for bench work, Mobile Electronics displays and Amateur Radio Equipment. Very heavy duty binding post outputs. Features metal cased output rectifiers mounted on heat sink for years of trouble free service. Heavy duty 3-prong grounded AC cord. Works perfectly and looks new! Measures 10.5" deep x 9.5" wide x 5.5" tall and weighs 18 lbs unpacked.
Cond. 9

SOLD 4/5/04
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B&K TUBE TESTER
DYNA-QUIK
MODEL 500

SOLD
 When you just need a quick, down, and dirty check on some tubes without flipping a lot of switches, or you don't have much experience using tube testers. Unit has new 6AT6 and #83 tubes installed, along with new filter caps. All other internal components checked and / or replaced where necessary. Tube chart glued into lid, but sockets have test info for most tubes silk screened next to them. Has optional 510 expansion module installed. Works and tests consistent with our calibrated shop B&K 747B. Unit clean. Case has normal wear to outside covering. Comes with optional 1B3GT socket adaptor as well as two cap pigtails.
COND. 7.0

SOLD

 

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(CLICK ABOVE PHOTOS TO ENLARGE)
B&K DYNAMIC MUTUAL CONDUCTANCE
TUBE / TRANSISTOR TESTER
650
#200005
SOLD
Number 5!! Will test both tubes and transistors. Good for simple, easy, and quick tests without flipping a lot of switches. All internal components checked. Comes with 75% complete tube chart (cards), but info for most tests is silk screened next to each tube socket. Seems to work well. Tested sample tubes  5U4, 12AX7, 6SJ7, 35W4, 6V6, And 6L6 consistent with our calibrated shop B&K 747B. Again we do not have a complete tube chart or manual. Case worn.
COND. 6.5

SOLD

 

 

 

B&K-707-#552135_web.jpg (34464 bytes)

B&K 707 TUBE TESTER-CHECKER
SOLD
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CheckMarkSmall_web.jpg (792 bytes)warranty

B&K TUBE TESTER / CHECKER
747 B 747B
MUTUAL CONDUCTANCE
TUBE TESTER / CHECKER
SOLID STATE

SOLD 
 Our favorite tester. We have one we have used for years and keep calibrated. Since it's solid state you don't have to worry that it's internal tubes have drifted. (Will not test early 4-pin or Acorn style tubes, but will test all popular and modern (post mid 40's) tubes). Features include:
- "Jet Check" testing section for very quick testing of select tubes
- Programmed Testing
- Dynamic Testing
- Tests High Voltage Regulators with proper current (dynamic test injects a signal voltage into the Grid and another much higher voltage is applied to the plate at the same time)
- Shorts Test (leakage paths up to 1 megohm and leakage as low as .5 microampere. 
- Grid Emission Tests (tests up to 100 megohms)
- Life Test (tests tubes remaining reserve or life expectancy)
- Dual Section testing (Each section of a multi-section tube can be tested separately)
- Voltage Regulated
- Overload Protection ( Manual circuit breaker protects if an unusually high load is inserted i.e a shorted tube.)
Very accurate tester. We have completely gone though it doing all calibrations as follows: 1) Signal Level set 2) Bias Voltage set 3) Meter Bridge Balance set 4) Shorts Sensitivity set 5) and finally Grid Emission Sensitivity set. Meter tests and works great! Exactly as our shop B&K 747B. Includes both the version II Tube chart (lists over 2500 tubes) and a copy of the manual / calibration guide. All 30 on board tube sockets in perfect condition. All controls function perfectly. Meter looks new! Even has built-in pin straightening for 7 pin miniature, 9 pin miniature, Noval / magnoval & Decal / Compactron tubes. Tester is built into a blow-molded heavy duty plastic case. Measures 21" wide x 13" deep. Includes our standard 30 day limited warranty for test gear.
B&K 747B
Cond. 9

SOLD
 

 

B&K_960_TransRadioTester_Sal_web.jpg (32099 bytes)

B & K
TRANSISTOR RADIO ANALYST
MODEL 960


Powers up, but we do not have an operations manual so unable to test further. Selling As-is
SOLD

 
CONAR 212 VOM.jpg (56811 bytes)

(CLICK ABOVE PHOTOS TO ENLARGE)
CONAR
212 VOM VOLT-OHM METER
SOLD

 

CTI_Tester_web.jpg (30758 bytes)  CTI_TESTER_Collage.jpg (79219 bytes)

CTI TUBE TESTER
MODEL TC-20

Nice portable, very easy to use tube tester by Central Trades Institute. Has been gone through and has all contacts and controls cleaned. New AC cord installed. Test results comparable to you shop calibrated B&K 747B. (Tested was 6L6, 5Y3, and 12AX7). Unit is clean with only normal wear to case. Cap pigtail intact. No cracked or chipped sockets or knobs. Meter window in great shape! Built-in handle doubles as a leaning stand. Tube chart, assembly instructions, operating instructions, and schematic included and fits in rear of unit for storage. No internal tubes required. Measures 15" wide x 9" tall x 3" deep and weighs only 9lbs unpacked. Great for portable use!
Cond. 8
SOLD

 

 

 
Eico147_web.jpg (31532 bytes)

(CLICK ABOVE PHOTOS TO ENLARGE)
EICO
MODEL 147
Signal Tracer / Test Speaker / Amplifier


Classic Signal tracer. Works well. Cosmetically a bit challenged. Very clean inside and out. All tubes and caps checked and replaced where necessary.
Cond. 8.

SOLD 4/5/04

 

 

  

NEW LISTING

(Click on above thumbnails to enlarge photos)
EICO RF GENERATOR
MODEL 324

SOLD 2/23/07

Classic RF generator for general Radio Audio / Stereo repair. These have been found on service benches for years. Features include:

- 6 Tuning bands
- 175 kc - 475 mc range
- 6 to 1 Vernier Tuning Dial with back light
- Built-in 400 Hz audio tone generator
- External modulation tone input
- Course and fine Attenuators
- Accuracy of tuning dial indicators +- 1.5%
- AF output voltage 0-10 volts across 100k ohms and 0-5 volts across 10k ohms
- AF input impedance 70k Ohms
- AF output impedance 10k Ohms
- External Modulation freq range 20-15,000 Hz
- Internal tubes 1x 12AU7 and 1x 12AV7


These are great for aligning AM and FM tuners and tuning sections on Hi-Fi gear. Also function as small radio transmitters. Fun for creating a mini broadcast station in your house / lab. This one does need some work. It does produce some output and does have AF output, but is not correct. We are selling it as is. Unit does look good and is clean inside. Likely a minor problem, but we do not have time to chase it, as we have a working one on our test bench. Unit measures 10" wide x 8" tall x 4.75" deep and weighs 10 lbs unpacked.
Cosmetic cond. 8.5
As-Is
$55.

SOLD 2/23/07

 

 

 
eico_377_#17629.jpg (65373 bytes)

EICO FUNCTION GENERATOR / AF SINE WAVE / SQUARE WAVE GENERATOR
MODEL 377


SERIAL # 17629

AF generator. Scratches on front visible on photo enlargement. Works fine.
COND. 7.5

HOLD FOR SHOP USE

 

 

Eico_625_tube_tester_checker_Blue_web.jpg (38875 bytes)

EICO
MODEL 625 (BLUE)
SOLD
EICO_635_tube_tester-checker.jpg (52924 bytes)

EICO
MODEL 635
SOLD
 

 

 

Eico_666_tube_tester-checker_web.jpg (17279 bytes)        Eico_666_tube_tester-checker_COLLAGE.jpg (86274 bytes)

EICO
MODEL 666

DYNAMIC CONDUCTANCE TUBE & TRANSISTOR TESTER
CIRCA 1956

SOLD

 
Electro-Technic_5000_variable_AC-DC_power_supply_web.jpg (29390 bytes)

(Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes)warranty
ELECTRO-TECHNIC
5000
VARIABLE AC / DC POWER SUPPLY

SOLD
8/7/08

Nice general purpose, bench-top variable power supply. Variable 0-11 volts (tested to 13 volts) AC output and 0-6.5 (tested to 16volts) DC output at 4.5 amps via binding / banana posts. Unit tests great. Measures 7" wide x 4.5" deep x 5" tall and weighs only5 lbs. Includes our standard 30 day limited warranty for test gear.
Cond. 9

$55.

SOLD
8/7/08

 

 

EMC-215_TubeTester_web.jpg (33372 bytes)

EMC PORTABLE TUBE TESTER / CHECKER
MODEL 215


SOLD
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(Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes)warranty
FLUKE MULTI-METER DIGITAL VOM
1900A
FREQUENCY / MULTI-COUNTER

SOLD 8/20/05
Multi-Counter. Provides frequency, period, period averaging, and totaling of measurements. Frequency range 5 Hz to 80 MHz. Looks and works great. All functions seem to check fine. May need a slight calibration, but was very close to our bench unit. Just need a BNC cable for input. Sorry no manual with it.
Includes our standard 30 day warranty for test gear (excluding blowing it up by injecting voltage into it or similar).
Cond. 8.5

$59.

SOLD 8/20/05

 
Gould_OS-1100_30-mHz_Dual-Trace_Oscilloscope_web.jpg (29311 bytes)     Gould_OS-1100_30-mHz_Dual-Trace_Oscilloscope_collage.jpg (139314 bytes)

(Click on above thumbnails to enlarge photos)

GOULD DUAL TRACE OSCILLOSCOPE
30 MHz
SOLD 8/30/04

Ready to go 30-Megahertz, Dual trace O-Scope. We have gone through it checking for basic function and cleaning controls internally. All functions test fine. Ready to use. Measures 17.5" deep x 12.5" wide x 7.5" tall and weighs 22 lbs unpacked. Utilizes standard BNC connector probe(s) (not included). 
Cond. 8

SOLD  8/30/04

 

 


 


HeathkitLabGen_web.jpg (12809 bytes)    HeathkitLabGen_collage.jpg (38073 bytes)
(CLICK ABOVE PHOTOS TO ENLARGE)
HEATHKIT
Laboratory Generator

RF generator. Tests fine. No dents or corrosion. All tubes and caps checked.
Cond. 8.5

SOLD
Heathkit_Zenith_3600_Labkit_web.jpg (21099 bytes)  Heathkit-Zenith_3600_Labkit_collage.jpg (92395 bytes)
CheckMarkSmall_web.jpg (792 bytes)warranty

HEATHKIT / ZENITH LABORATORY / ELECTRONIC TRAINER KIT
ET-3600


These were designed for electronic courses, experimenters, and general bench use. They are a great multi-purpose device.
Features include:

- Onboard 750 hole breadboard
- +1-15 volt low amperage, variable output DC power supply
- -1-15 volt low amperage, variable output DC power supply
- Dual 15 volt low amperage, AC power supplies
- 30 volt low amperage, AC power supply
- 200 Hz- 20 khz Sine Wave generator
- 200 hz - 20 khz Square Wave generator
- 180-1250 ohm general purpose variable potentiometer
- 2.2k-85,000 ohm general purpose variable potentiometer.
- Rear mounted 60-pin ribbon connector


These are great devices. Add a soldering iron and a multi-meter and you have a great general purpose work-bench. We have completely tested all functions and all works great! Unit also is in fine cosmetic condition. Measures 12" wide x 11" deep x 5" tall and weighs 5 lbs. Comes with our standard 30 day limited warranty for test gear.
Cond. 9.5
SOLD

 

 

Heathkit_10-104_O-Scope_web.jpg (32560 bytes)    Heathkit_10-104_O-Scope_collage.jpg (108936 bytes)

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HEATHKIT OSCILLOSCOPE
MODEL 10-104

SOLD 6/3/05
Nice 5-Megahertz single trace O-Scope. Great for general audio bench work. This has been our old stand-by for a few years, but it looks like the smaller scope we have now is going to work better for us. This scope is in great shape and everything works well. No burns on screen! If you have space and don't need tons of features then here you go. A good reliable scope for beginners and pros alike. Measures 10 3/4" wide x 20.5" deep x 12.5" tall and weighs 33 lbs unpacked. Utilizes standard BNC connector probe (none included)
Cond. 8.5

$99.
SOLD 6/3/05

 
Heathkit_IP-5220_web.jpg (26511 bytes)  HeathKit_IP-5220_collage.jpg (74182 bytes)


HEATHKIT IP-5220 VARI-AC
Variable AC power supply


ON HOLD FOR SHOP USE

 

 



HEATHKIT IP-5220 VARI-AC
Variable AC power supply


ON HOLD FOR SHOP USE

 


Hickock_Western_web.jpg (30893 bytes)      Hickock_Western_collage.jpg (246715 bytes)

HICKOK / WESTERN ELECTRIC TUBE TESTER / CHECKER
MODEL KS-15560-L1
Circa 1952

SOLD

 



 
 

Hickok_752_Tube_Tester_Checker_web.jpg (31772 bytes)    

Hickok_752_Tube_Tester_Checker_collage.jpg (359584 bytes)


(CLICK ABOVE PHOTOS TO ENLARGE)
   
HICKOK / WESTERN ELECTRIC TUBE TESTER / CHECKER HICKOCK 
752
DYNAMIC MUTUAL CONDUCTANCE
TUBE TESTER-CHECKER

SOLD 8/22/04
Hickok tube testers are recognized as the more "serious" tube checkers that were available. Not a good tester for the novice or beginner to use as they are complicated to operate / utilize to their fullest, but if you're used to working with tubes / test gear or have a working knowledge of Hickok's then you will love it. With the exception of the case (see photo collage) this one is in great shape. We have given it a "lite" going over, checking internal caps, testing internal tubes, cleaning contacts, "tweaking" tube chart for easier rolling and given it a good cleaning overall. We then spot checked a few different tubes with results consistent with our calibrated "shop" B&K 747B (747B - easy to use, but no where near the level of gear the 752 Hickok is). Does include a copy of the manual / schem in addition to the internal tube chart. Measures 19" x 17" x 8" (closed" and weighs 23 lbs unpacked.
Hickok 752
Cond. 7.5 (due to case)
As-is

SOLD 8/22/04
 

 

 


 
Hitachi_V-355_Oscilloscope_Web.jpg  

    Hitachi_V-355_Oscilloscope_Collage.jpg


NEW LISTING 8/7/09
(Click on above thumbnails to enlarge photos)

HITACHI
OSCILLOSCOPE
35 mHz / DUAL TRACE
MODEL V-355

Nice 35-Megahertz, Dual trace O-Scope. We have gone through it checking for basic function. All functions test fine and trace has been aligned. Ready to use.
-True WORLD AC POWER  allows unit to be operated on 50 or 60 Hz AC and will select voltages from 90-264 volts AC input for use anywhere in the world.  
Comes with a copy of the owners / users manual. Utilizes standard BNC connector probe(s) (not included). 
Cond. 8.5
$259.
SOLD 10/18/09

 

 

  Hy-Tronix_web.jpg (21494 bytes)

HY-TRONIX
AUTOMATIC TRANSISTOR ANALYZER / CHECKER.
MODEL 900

SOLD
Dummy-Loads_IRC_4Ohm_210_watts_collage.jpg (23540 bytes)
(Click on above thumbnails to enlarge photos)
IRC DUMMY LOADS
DUAL 3.6 (4 OHM)
210 WATTS EACH


IRC Brand
very good quality older USA made resistors. These are new old stock. Perfect for loading tube amps. Could be the heart of a versatile dummy load box. They could be configured for 2, 4, or 8 ohms of load. Measure 1" in diameter, and are 10.5" long.
COND. 10

$40. pr.
ON HOLD FOR SHOP USE

 
   
JACKSON 636.JPG (159265 bytes)

JACKSON TUBE TESTER / CHECKER
MODEL 636

SER. #
720

Very early model based on such
a low serial number. Unit does
power up with no smoke, but untested beyond that. Has internal tube chart. This is an early tube tester thus is somewhat limited in the tubes it can test. Case scuffed, but chassis very clean. All pots and switches seem to work. Has original instructions and original unfilled out warranty card included. Overall mechanical/ cosmetic condition 7.0
AS IS

ON HOLD FOR SHOP USE

 

jackson_648_tester.jpg (213464 bytes)

JACKSON TWEED TUBE TESTER.
MODEL 648


SOLD

 

 
HP_1220A_Oscilloscope_web.jpg (30293 bytes)  HP_1220A_Oscilloscope_collage.jpg (182684 bytes)
(Click on above thumbnails to enlarge photos)
HP
HEWLETT PACKARD
MODEL 1220A
OSCILLOSCOPE
SOLD 3/9/05


Nice 15-Megahertz, Dual trace O-Scope. We have gone through it checking for basic function. All functions test fine and trace has been aligned. Ready to use. Was issued for the French market as silk-screening on front is in French. Still easy to use and operates like any standard scope.  
-True WORLD AC POWER  allows unit to be operated on 50 or 60 Hz AC (actually ranges from 43-60Hz) and will select voltages from 110v, 120v, 220v and 240 volts AC input for use anywhere in the world.  
Utilizes standard BNC connector probe(s) (not included). 
Cond. 8.5

SOLD 3/9/05

HP_4934A_TIMS_test-set_web.jpg (33149 bytes)

HP
4934A TIMS
SOLD

 

 
NRI_2500 ANGLE.JPG (127103 bytes)     Mvc-004f.jpg (59036 bytes)
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NRI
MODEL 2500
SOLD 9/15/05

5-Mhz
OSCILLOSCOPE

Works well. Single trace, 5 Megahertz. Very clean. Great scope if you need something simple that doesn't take up much space on your bench. Probe not included, but is standard BNC connection. Rule leaning against side is 6".
COND. 9.0
$110.

SOLD 9/15/05

 

 

 

 

 

 

Ohmite_Variable_Resistor_web.jpg (40902 bytes)

  Ohmite_Variable_Resistor_collage.jpg (97739 bytes)
(Click on above thumbnails to enlarge photos)
OHMITE
VARIABLE 0-25 OHM / 
500 WATT
HOLD FOR SHOP USE

DUMMY LOAD / RHEOSTAT 
RATED TO 4.47 AMPS

This is the same model we use on our test bench for testing amplifier outputs. Can be marked at 2, 4, 8 & 16 ohms for convenience or any setting from 0-25 ohms. Wattage capacity is 4.47 amps / 500 watts. Can be used as-is or mounted behind a panel. Mounting flange included. Great condition. Measures 7.5" in diameter and is 2" thick. Very handy test load. Great speaker substitute. Made in USA.
1 only available @

$129.
HOLD FOR SHOP USE


 
   




PANAVISE
CIRCUIT BOARD HOLDER
SOLD

 

 





NEW LISTING 7/15/05

(Click on above thumbnails to enlarge photos)
PACO
MODEL G-30
SOLD 8/20/05

RF GENERATOR


Very good condition and did pass pre-testing to as far as our Frequency counter would test (3.9mHz),
RF generator for general Radio Audio / Stereo repair. A Paco G-30. Features include:

- 6.5 Tuning bands
- 158 kc - 240 mc range
- Vernier Tuning Dial
- Built-in 400 Hz audio tone generator
- Variable AF output level control
- External modulation tone input
- RF Output and Level Attenuators
- 2 Internal tubes


These are great for aligni
ng AM and FM tuners and tuning sections on Hi-Fi gear. Also function as small radio transmitters. Fun for creating a mini broadcast station in your house / lab. This one does need some work. Unit does look good and is clean inside. While we did not do a full restoration on this unit, it does appear to work well. Should be completely gone through and calibrated, prior to use. Unit measures 11.5" wide x 8" tall x 6" deep and weighs 10 lbs unpacked.
Cosmetic cond. 9
As-Is
$85.
SOLD 8/20/05

 


 
 

 

Perkins540_Web.jpg (39977 bytes) Perkins540_Collage.jpg (105986 bytes)
Perkins
Model 540A
Automatic Fault Locator
SOLD
 
RCA_WV-98C_VTVM_Tube_Multi-Meter_web.jpg (22885 bytes)      RCA_WV-98C_VTVM_Tube_Multi-Meter_collage.jpg (143393 bytes)
(CLICK ABOVE PHOTOS TO ENLARGE)
CheckMarkSmall_web.jpg (792 bytes)warranty

RCA
WV-98C
SOLD
"SENIOR VOLT-OHMYST"
Vacuum tube VTVM multi-meter

Classic tube volt / ohm meter found on most test / work benches. We have completely gone through this one, checking the internal tubes, caps and installing a new D cell. Seems to test and work great! Looks near new. No cracks in window or rust. All original knobs. Comes with original RCA WG-299E probe with selectable AC or DC resistance. Original leather handle in perfect condition. Measures 7" wide x 6.5" tall and 4.5" deep. Includes our standard 90 day warranty (excluding blowing it up by injecting voltage when in Ohms position).
Cond. 8.5

SOLD

 

   
RCA_WV-120A_web.jpg (42762 bytes)
CheckMarkSmall_web.jpg (792 bytes)warranty

VINTAGE RCA
WV-120A
AC (RMS) VOLTAGE
POWER-LINE MONITOR
A must have for every bench! Continuously monitors your AC power line and outlets with a large easy to see VU meter. Registers from well less than 100 volts to well over 140 volts. We always have ours plugged in. Great for monitoring power sags from AC line problems and current hungry loads. Checked against both our RCA WV-120a and our digital meters. Looks and works great! Plugs into any standard American AC Edison outlet. Small footprint measuring only 5 1/8" wide x 4 1/8" high x 3 1/8" deep. Includes our standard 90 day limited warranty.
Cond. 8.5
SOLD




  

NEW LISTING
(Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes)warranty

RCA
WV-98C
"SENIOR VOLT-OHMYST"
VACUUM TUBE VTVM
MULTI-METER

Classic tube volt / ohm meter found on most test / work benches. We have completely gone through this one, checking / replacing the internal tubes, caps and installing a new D cell. We have calibrated to manual specs. Tests accurately with our calibrated bench unit and work great! Looks near new. No cracks in window or rust. All original knobs. Comes with original RCA WG-299E probe with selectable AC or DC resistance. Original leather handle in perfect condition. Includes a copy of the owners / users manual. Measures 7" wide x 6.5" tall and 4.5" deep. Includes our standard 30 day warranty for test gear (excluding blowing it up by injecting voltage when in Ohms position or similar).
Cond. 8.5
$169.
SOLD 10/25/06

 

RCA_WV-97A_Senior_VoltOhmyst_Salvage_web.jpg (34769 bytes)
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes)warranty

RCA
WV-97A

SOLD 4/7/06

"SENIOR VOLT-OHMYST"
Vacuum tube VTVM multi-meter

Classic tube volt / ohm meter found on most test / work benches. However we can't seem to get this one to zero. We checked the tubes inside and installed a new Cap, AC cord and cleaned contacts and controls, but didn't investigate too far. No cracks in window or rust. All original knobs. Original leather handle in perfect condition. Measures 6.5" wide x 8" tall and 4.5" deep. Selling As-Is for fix-up or for parts.
$35.

SOLD 4/7/06



RCA WV-98C SENIOR.JPG (140528 bytes)

RCA
WV-98C
SENIOR VOLT-OHMYST
SOLD

 

RCAFMSimulator_web.jpg (25547 bytes)    RCAFMSimulator_collage.jpg (48654 bytes)

RCA
WR-51A
STEREO FM SIGNAL SIMULATOR
CIRCA 1962
SOLD
 
RCA WA-504A.jpg (115867 bytes)

RCA
MODEL WA-504A
AF GENERATOR


Works well w/ exception
of small harmonic tone
occurring around 60 HZ.,
which is typical on a lot of
AF generators due to 60 HZ
line current.
Original knobs and fittings
including handle.

COND. 7.5

HOLD FOR SHOP USE

 

200-IN-ONE_3_web.jpg (63575 bytes) 200-IN-ONE_4_web.jpg (45084 bytes)
(Click on above thumbnails to enlarge photos)
REALISTIC / RADIO SHACK
200 in ONE
SOLD 11/15/05

ELECTRONICS PROJECT / EXPERIMENTERS KIT

Great kit for beginning experimenters and advanced students alike. Parts fixed in place and includes lots of jumpers to connect solderless junctions. Learn basics of electricity and electronics. Lots of projects to build from amplifiers to oscillators to an AM radio and broadcaster to computer circuits and many more. Includes meter, pots, switches, speaker, transformers, relay, antenna and more! Also includes original box and 109 page instruction / project manual. Uses 6 AA-batteries (not included).
$39.
SOLD 11/15/05

 

 

300_ElectronicKit_web.jpg (27218 bytes)   300_ElectronicKit_collage.jpg (221663 bytes)

REALISTIC / RADIO SHACK
300 in ONE
ELECTRONICS PROJECT / EXPERIMENTERS KIT
SOLD

 

 
Sencor_TC-142_Tube_Tester_Checker_web.jpg (33518 bytes)

Sencor_TC-142_Tube_Tester_Checker_collage.jpg (277935 bytes)

(Click on above thumbnails to enlarge photos)

SENCOR
TC142 TC-142 
TUBE TESTER / CHECKER
SOLD 4/21/04

This compact Sencor TC-142 will test most audio, radio & TV tubes. Good for simple, easy, and quick tests.  All components checked including the units' internal RCA 12AU7 tube. All switches cleaned. Comes with original & complete operators manual / tube chart. Tested sample tubes  5Y3, 12AX7 and 6L6 consistent with our calibrated shop B&K 747B. Unit in usable shape with surface corrosion on face and chrome case parts. Measures 10.5" x 10.5" x 4.25" and weighs 8 lbs unpacked.
COND. 7

$139.
SOLD 4/21/04

 

 

 

NEW LISTING 3/16/06
(Click on above thumbnails to enlarge photos)

SIMPSON
360
 MULTI-METER
Circa 1963

SOLD 4/7/06

 
Superior_Powerstat_Blue_webn.jpg (31905 bytes)

SUPERIOR
POWER-STAT
TYPE 136B
VARI-AC / DIMMER
SOLD

 

 

Superior_electric_co_Powerstat_Variac_9-amp_collage.jpg (30241 bytes)
(Click on above thumbnails to enlarge photos)
SUPERIOR ELECTRIC CO.
MODEL S649
"POWERSTAT"

VARIAC

Accepts 110 or 220 AC volts input. 9 amp capacity. 10-140 volts output with 110 volts input. Great for general bench work, reforming and breaking in filter caps, troubleshooting tube amps by lowering or increasing their voltage, or dimming lighting. Also could be used to run a tube amp "brown" if you so desire. Very heavy duty, older USA made unit. Much more durable than most of the import units. Very well ventilated. Can be mounted to a panel from the inside, or left free-standing. Output bolts are 1/4". Shaft should have knob installed. It's diameter is 3/4", and it protrudes 1 1/4" from the front. Unit diameter is 8" at it's widest point, and 7" tall not counting the shaft.  The variac weighs 26 lbs.


Warning:
Due to high potential AC current and voltage, Vari-AC's are very dangerous for the untrained user. Only for use by qualified technicians!

COND. 8.5

$129.
As-Is
SOLD 10/18/09

 

 

Sylvania220_web.jpg (21768 bytes)

SYLVANIA
MODEL 220
TUBE TESTER


CIRCA 50'S-60'S
CHECKED ALL INTERNAL COMPONENTS. CLEANED CONTACTS, POTS, AND SOCKETS. INSTALLED NEW METER LAMPS. CHECKED 7 REFERANCE TUBES ( 5U4, 6L6, 6V6, 12AX7, 35W4, 6SJ7, & 50L6) SATISFACTORILY. METAL CASE AND LID HAVE NO DENTS, OR RUST. SOME "CHEMICAL BURN" FROM OUT-GASSING OF RUBBER INSULATION ON AC CORD ON FACE NEAR TUBE CHART WINDOWS, AND LID. VISIBLE AS YELLOWED AREAS. ABBREVIATED INSTRUCTIONS SILK-SCREENED ON LID. TUBE CHART INTACT AND ROLLS SMOOTH. NO MISSING KNOBS. ALL SWITCHES FUNCTION PROPERLY.

COND. 8.0
SOLD
Tau-Tron_S5104_Used_Transmission_Test_Set_web.jpg (37904 bytes)      Tau-Tron_S5104_Used_Transmission_Test_Set_collage.jpg (466210 bytes)

(Click on above thumbnails to enlarge photos)
TAU-TRON
S5104
DIGITAL
TRANSMISSION TEST SET

SOLD 3/9/07


I know a little about a lot of different stuff and a lot about a few things, but virtually nothing about Transmission Test Sets. We have had a couple in the past that have sold, but that's all I know. Unit fires up and does respond to it's switches. The last one we had could do a "self-test", but I don't know how to engage a test with this unit. According to some other info on the web it's used for testing digital radio, fiber-optic and T-carrier systems including multi-plexers, switches and lines. Has GPIB and RS 232 outputs.? Sorry no manual with it. Measures 13.5" wide x 17.5" deep x 7" tall (with stand folded in) and weighs 20 lbs unpacked. AC cord included. 
Selling As-Is
Cosmetic Cond. 8.5

$159.

SOLD 3/9/07

 

 

     


(Click on above thumbnails to enlarge photos)

TEAC TASCAM
TO-122A TEST TONE OSCILLATOR
for sale
Also great for injecting signal into amps and mixing board!

I used these Teac TO-122A Test Tone generators for years in the field as a Tascam dealer. I always had one in my tool box for testing Pro-Audio sound systems in clubs and churches. I used them to detect signal paths and look for anomalies in room acoustics at different frequencies. They're also great for setting levels on input gains and for leveling power meters. They have many other uses as well. Small package runs off a standard 9-volt battery. Fixed 1/4" out. Frequencies are selectable 40Hz, 400Hz, 1kHz, 4kHz, 10kHz and 15kHz. Levels are selectable between -10 or -40dB. Unit works perfectly and looks great. LED to show power on. Easy 2-screw battery change if you accidentally leave it on or just need to change the battery. Unit is small enough to fit in your tool box measuring only 3 1/8" wide x 2.5" deep x 1.5 tall. These are no longer available from Teac new.
Teac TO-122A
SOLD

 

 





 

Tenma_72-320_web.jpg (34964 bytes)  Tenma_72-320_collage.jpg (134435 bytes)
CheckMarkSmall_web.jpg (792 bytes)warranty
TENMA
72-320
Dual Trace / 20 Mhz Oscilloscope. 


HOLD FOR SHOP USE

   

Tetronix
551 / 555
O-Scope
SOLD


Triplett_630-PL_VOM_web    Triplett_630-PL_VOM_collage

Triplett_630-PL_VOM_scan

NEW LISTING 8/4/11

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VINTAGE / ORIGINAL
TRIPLETT
630-PL MULTI-METER
MILLIAMMETER
ANALOG 'VOM'
Circa 1963
SOLD 11/22/11
 Unit in 'Like New', unused or virtually unused condition. True 'Museum' quality find. We see these and Simpson 260's all the time, but almost always pass them up as the meter needle will have sluggish to very sluggish movement (and are not very serviceable if that is the case). This is one of about 30 we have come across that has no 'sluggishness' to the needle movement (good question to ask when you're looking at a 'cheaper' one on an online auction).
No cracks in window or rust. All original knobs.
Meter & Scale: 50uA taut-band movement. 4.5" mirrored scale. Temperature compensation. All range polarity-reversing switch. Slide switch for range doubling. 
Overload Protection : Meter movement is semi-conductor (diode) network protected. 12AMP/250V fuse protects the 12 Amp range. 1.25 Amp/250 Volt fuse protects other ranges.
Features:

-  Single range switch to help reduce chance of operator error
-
  Diode overload protection and 2 fuse arrangement
-
  Mirrored scale to reduce parallax error 
-
  Decibel function for audio work
-
  All ranges are fuse protected 
-
  'Thermoset' plastic case
-
  Ranges and Functions
-
  Glass meter window for added chemical resistance
-
  Two input jacks to help minimize error
-
  AC Voltage frequency response to 40KHz typical
-
  Resistance measurement of 30V / 100M on Rx100K range for testing insulation

Specifications / Specs:
DC Voltage Ranges: 0-0.25 (10,000 Ohms/Volt, 0-2.5, 10, 50, 250, 1000 (20,000 Ohms/Volt)  Accuracy: 1.5% of Full Scale
AC Voltage Ranges: 0-3, 10, 50, 250, 1000 Accuracy: 3% of Full Scale
Sensitivity: 5,000 Ohms/Volt
DC Current Ranges: 100uA, 10mA, 100mA, 1A, 10A 
Accuracy: 1.5% of Full Scale
Max. Voltage Drop: 500mV
Decibels: -20dBm to +49dBm (0dBm at 1mW on a 600 Ohms line)
Resistance Ranges: 0-1K Ohms, 10K Ohms, 1M Ohms, 100M Ohms
Center scale: 4.4 Ohms on lowest range
Accuracy: 1.5% of Scale Length
AC Output Ranges: 1.5, 6, 30, 150 (10,000 Ohms/Volt, 3, 12, 60, 300 (5,000 Ohms/Volt)

Comes with original, un-used (still wrapped) probes. Original leather handle and case in excellent, almost new condition. Includes a copy of the owners / users manual. Attention, you will need special batteries to utilize this meter and they are not included, nor do we have access to them. We tested it with our bench power supplies. The required batteries are: B1 = 1.5v 'Burgess' No. 2 or equivalent
(you can use a standard 'D' cell for this one) and B2= 30V Burgess, U20E or Eveready 413 for the '100,000 Ohm' range.
Includes our standard 30 day warranty for test gear (excluding blowing it up by injecting voltage when in Ohms position or similar). Measures 7.75" tall x 5.5" wide and 3.5" deep and weighs ~5 lbs.
Cond. 10
$189.
SOLD 11/22/11

 

 


 

 

 

 


 


 

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