This is a Stark 9-66 Tube Tester. The circuitry of the Stark 9-66 is based on the Hickok line of Tube Testers. Stark Tube Testers were made in Canada. The
This is a Stark 9-66 Tube Tester. The circuitry of the Stark 9-66 is based on the Hickok line of Tube Testers. Stark Tube Testers were made in Canada. The
This is a Weston 981 Mutual Conductance tube tester that was not functional when I received it for calibration. One of the electrolytic capacitors was shorted and blew a fuse
This is a Hickok 752A that I restored electronically and calibrated. This is a very nice tester and is very clean. The 752A has the ability to test a multi
This 539C was not working because all three meters were bad. The meters were replaced with digital meter replacements and the tube tester was calibrated. Analog meters in tube testers
This is a restored Precision 912P Tube Tester. Included is a CD with a copy of the manual and tube test data. The deck is in very good condition and
Very nice newer model Precision 10-12 Tube Tester.
Precision 10-xx Solid State tube Tester?