Uploaded August 2025 | Updated September 2026, 1 week ago

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We find more faults in our TV-2B\U military electron tube tester, which leads to wild chases inside the spaghetti schematics and wiring.

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00:00 Recap of episode 1, short test not working
00:55 Not the neon light?
04:01 Debugging the shorts test circuit
05:28 Measuring the neon strike voltage
06:07 Debugging the -160V supply
14:52 Repair and test
17:49 Roll chart
18:30 Dual diode tube test
21:09 Mercury rectifier tube test
23:06 I have more faults!
25:25 Debugging the voltage regulator test
32:42 Works again!
33:09 Leakage test
36:00 All done!