Business & Industrial Equipment

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Business & Industrial Equipment

2,105 results in Business & Industrial

Vintage B&K Dyna-Jet Dynascan 747 Mutual Conductance Tube Tester Checker #1 Used
Tube Testers

Vintage B&K Dyna-Jet Dynascan 747 Mutual Conductance Tube Tester Checker #1

USD $300.00

Seller: 100.0% positive

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RCA Picture Tube CRT Tester CR III WT-333A w/ 7 Socket Adapters POWERS ON Used
Tube Testers

RCA Picture Tube CRT Tester CR III WT-333A w/ 7 Socket Adapters POWERS ON

USD $65.00

Seller: 100.0% positive

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Digital vacuum tube tester KIT, Duokit 3 with the front panel New
Tube Testers

Digital vacuum tube tester KIT, Duokit 3 with the front panel

USD $350.00

Seller: 100.0% positive

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Vintage Self Service Tube Tester Store Display Cabinet Used
Tube Testers

Vintage Self Service Tube Tester Store Display Cabinet

USD $250.00

Seller: 100.0% positive

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Vacuum Tube Tester New
Tube Testers

Vacuum Tube Tester

USD $319.00

Seller: 100.0% positive

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Hickok 539C Tube Tester – Restored – Meter Upgrades – Free Ship CONUS (b41) Seller refurbished
Tube Testers

Hickok 539C Tube Tester – Restored – Meter Upgrades – Free Ship CONUS (b41)

USD $1,695.00

Seller: 100.0% positive

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Excellent Triplett 3444 Mutual Conductance Tube Tester - Calibrated Seller refurbished
Tube Testers

Excellent Triplett 3444 Mutual Conductance Tube Tester - Calibrated

USD $1,995.00

Seller: 100.0% positive

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Hickok 539C Direct-reading Transconductance Vacuum Tube Tester w/ Manuals Used
Tube Testers

Hickok 539C Direct-reading Transconductance Vacuum Tube Tester w/ Manuals

USD $1,295.88

Seller: 99.5% positive

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B&K 707 VACUUM TUBE TESTER DYNA-JET PARTS OR REPAIR (NO POWER) For parts or not working
Tube Testers

B&K 707 VACUUM TUBE TESTER DYNA-JET PARTS OR REPAIR (NO POWER)

USD $199.95

Seller: 99.9% positive

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Antique Weston Model 682 Tube Tester For parts or not working
Tube Testers

Antique Weston Model 682 Tube Tester

USD $34.97

Seller: 99.8% positive

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(PARTS ONLY) Knight Model 400 Vacuum Tube Checker Allied Radio Chicago USA For parts or not working
Tube Testers

(PARTS ONLY) Knight Model 400 Vacuum Tube Checker Allied Radio Chicago USA

USD $35.00

Seller: 99.9% positive

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Heathkit TC-2 Vacuum Tube Tester Vintage Audio Ham Radio Amp Used
Tube Testers

Heathkit TC-2 Vacuum Tube Tester Vintage Audio Ham Radio Amp

USD $104.95

Seller: 99.5% positive

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U.S. ARMY SIGNAL CORPS TV-2/U Military Tube Tester Works Good 30 Day Returns Used
Tube Testers

U.S. ARMY SIGNAL CORPS TV-2/U Military Tube Tester Works Good 30 Day Returns

USD $735.00

Seller: 100.0% positive

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Vintage Hickok Model 533A Dynamic Mutual Conductance Tube Tester For parts or not working
Tube Testers

Vintage Hickok Model 533A Dynamic Mutual Conductance Tube Tester

USD $210.00

Seller: 100.0% positive

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NRI Professional Signal Generator Model 88 RF Radio Frequency Tuner Transmitter Used
Tube Testers

NRI Professional Signal Generator Model 88 RF Radio Frequency Tuner Transmitter

USD $79.00

Seller: 100.0% positive

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Hickok 539B 539C, 2 BOOK SET ULTIMATE MANUAL and TEST DATA Book New – Open box
Tube Testers

Hickok 539B 539C, 2 BOOK SET ULTIMATE MANUAL and TEST DATA Book

USD $30.00

Seller: 100.0% positive

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TV-7 Series Tube Tester - Calibration Tube Set - TV7 TV-7-D/U TV-7 - Bogie Tubes Used
Tube Testers

TV-7 Series Tube Tester - Calibration Tube Set - TV7 TV-7-D/U TV-7 - Bogie Tubes

USD $77.99

Seller: 100.0% positive

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Hickok 539B Tube Tester Used
Tube Testers

Hickok 539B Tube Tester

USD $950.00

Seller: 100.0% positive

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Hickok Model 750 Dynamic Tube Tester For parts or not working
Tube Testers

Hickok Model 750 Dynamic Tube Tester

USD $399.99

Seller: 100.0% positive

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VINTAGE Western Electric ( Hickok ) KS-15750-LI Tube Tester / PART or REPAIR Used
Tube Testers

VINTAGE Western Electric ( Hickok ) KS-15750-LI Tube Tester / PART or REPAIR

USD $999.99

Seller: 99.7% positive

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1970 Tube Test Data for Hickok 539B and 539C Tube Testers New
Tube Testers

1970 Tube Test Data for Hickok 539B and 539C Tube Testers

USD $13.99

Seller: 99.9% positive

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Jackson 648 Improved Tube Tester Manual with Tube Test Data New – Open box
Tube Testers

Jackson 648 Improved Tube Tester Manual with Tube Test Data

USD $16.99

Seller: 99.9% positive

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Another Excellent B&K 606 Tube Tester SERVICED & CALIBRATED Plug & Play Ready Seller refurbished
Tube Testers

Another Excellent B&K 606 Tube Tester SERVICED & CALIBRATED Plug & Play Ready

USD $239.00

Seller: 100.0% positive

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45 2A3 300B tube amp plate current bias testers $16ea SHIP DAILY FROM USA New
Tube Testers

45 2A3 300B tube amp plate current bias testers $16ea SHIP DAILY FROM USA

USD $16.00

Seller: 100.0% positive

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Weston 981 type 3 Tube Tester Manual New – Open box
Tube Testers

Weston 981 type 3 Tube Tester Manual

USD $12.99

Seller: 99.9% positive

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EICO 625 Complete Tube Tester Manual with 1978 Tube Test Data New – Open box
Tube Testers

EICO 625 Complete Tube Tester Manual with 1978 Tube Test Data

USD $13.99

Seller: 99.9% positive

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USA TV-7D/U Tester TV-7 Ultimate Updated Tube Test manual All the data there is New
Tube Testers

USA TV-7D/U Tester TV-7 Ultimate Updated Tube Test manual All the data there is

USD $20.00

Seller: 100.0% positive

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EICO TV Picture Tube Test Adapter 610 & Model CRA in original box Used
Tube Testers

EICO TV Picture Tube Test Adapter 610 & Model CRA in original box

USD $29.99

Seller: 100.0% positive

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Sencore Set-Up Book Tube Data TC114 TC 130 TC136 TC142 TC154 New
Tube Testers

Sencore Set-Up Book Tube Data TC114 TC 130 TC136 TC142 TC154

USD $14.99

Seller: 99.9% positive

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ACCURATE INSTRUMENT Co. Model 151 Vacuum Tube Tester with Manual Booklet Used
Tube Testers

ACCURATE INSTRUMENT Co. Model 151 Vacuum Tube Tester with Manual Booklet

USD $125.00

Seller: 100.0% positive

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Knight tube tester For parts or not working
Tube Testers

Knight tube tester

USD $80.00

Seller: 99.1% positive

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Precision Tube Tester 10-12 10-15 Operating Instructions With 1974 Tube Data New – Open box
Tube Testers

Precision Tube Tester 10-12 10-15 Operating Instructions With 1974 Tube Data

USD $14.99

Seller: 99.9% positive

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TV-7 D/U Military Tube Tester Excellent Condition refurbished/calibrated Dec '25 Used
Tube Testers

TV-7 D/U Military Tube Tester Excellent Condition refurbished/calibrated Dec '25

USD $1,399.99

Seller: 100.0% positive

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TUBE SOCKET MX-1417/U ADAPTER FOR HICKOCK 547 Hickok For parts or not working
Tube Testers

TUBE SOCKET MX-1417/U ADAPTER FOR HICKOCK 547 Hickok

USD $95.00

Seller: 100.0% positive

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VINTAGE Supreme Model 504-A Vacuum Tube Tester for parts or repair For parts or not working
Tube Testers

VINTAGE Supreme Model 504-A Vacuum Tube Tester for parts or repair

USD $34.99

Seller: 99.7% positive

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Century Electronics FC-2 Tube Tester Manual New
Tube Testers

Century Electronics FC-2 Tube Tester Manual

USD $12.99

Seller: 99.9% positive

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Tube Tester Metal 6L6 Calibration Bogie Tube in umhos for Hickok, Heathkit, etc Used
Tube Testers

Tube Tester Metal 6L6 Calibration Bogie Tube in umhos for Hickok, Heathkit, etc

USD $46.99

Seller: 100.0% positive

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*USA* TV-7D/U TESTER TV-7 2 MANUAL SET ULTIMATE TUBE TEST DATA / HOW TO USE New
Tube Testers

*USA* TV-7D/U TESTER TV-7 2 MANUAL SET ULTIMATE TUBE TEST DATA / HOW TO USE

USD $28.00

Seller: 100.0% positive

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Weston Model 774 TYPE 4 VALVE TUBE TESTER ANALYSER Used
Tube Testers

Weston Model 774 TYPE 4 VALVE TUBE TESTER ANALYSER

USD $349.89

Seller: 99.2% positive

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HICKOK 539C TUBE TESTER LATE MODEL S/N 523-00149 ORIGINAL BIAS DC METER Used
Tube Testers

HICKOK 539C TUBE TESTER LATE MODEL S/N 523-00149 ORIGINAL BIAS DC METER

USD $299.99

Seller: 100.0% positive

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Precision Tube Test Data for 910 912 914 915 920 922 954 Tube Testers New – Open box
Tube Testers

Precision Tube Test Data for 910 912 914 915 920 922 954 Tube Testers

USD $12.99

Seller: 99.9% positive

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Weston 981 type 3A Tube Tester Manual New
Tube Testers

Weston 981 type 3A Tube Tester Manual

USD $12.99

Seller: 99.9% positive

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*USA* ULTIMATE TV-7D/U TV-7 MANUAL How to use Tube Tester Instructions New
Tube Testers

*USA* ULTIMATE TV-7D/U TV-7 MANUAL How to use Tube Tester Instructions

USD $18.00

Seller: 100.0% positive

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1940 Signal Corp WESTON Model 685-2 Tube Checker Type 80 Tube US Army I-56A For parts or not working
Tube Testers

1940 Signal Corp WESTON Model 685-2 Tube Checker Type 80 Tube US Army I-56A

USD $59.00

Seller: 99.6% positive

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Another Superb B&K DYNA JET 707 Tube Tester FULLY REFURBISHED Plug & Play Ready! Seller refurbished
Tube Testers

Another Superb B&K DYNA JET 707 Tube Tester FULLY REFURBISHED Plug & Play Ready!

USD $649.00

Seller: 100.0% positive

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Lafayette Accurate Instruments Model 157 Vacuum Tube Tester Tested Working Used
Tube Testers

Lafayette Accurate Instruments Model 157 Vacuum Tube Tester Tested Working

USD $125.00

Seller: 100.0% positive

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Mercury 2000 Dynamic Mutual Conductance Tube Tester w/Manual Tube Book + Papers Used
Tube Testers

Mercury 2000 Dynamic Mutual Conductance Tube Tester w/Manual Tube Book + Papers

USD $299.95

Seller: 96.7% positive

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Hickok Dynamic Beta Model- 870 Transistor Tester Power Only For parts or not working
Tube Testers

Hickok Dynamic Beta Model- 870 Transistor Tester Power Only

USD $325.00

Seller: 99.6% positive

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