12:45

3X572 AL811

16:01

813 verses four 807 valves for mitters

19:37

'Old School' GS-35B Tube HF Linear Amplifier.

10:27

Heathkit Sb-200 Repair

4:59

813 linear amplifier

12:00

Capacitor Leakage Tester With LED BAR (AU-0522-II)

15:48

IRF 520 Real

15:37

Dentron Clipperton aka 160-10L, 4 572B tube, 10 - 160 meter, linear amplifier unpowered walkthru