Uploaded August 2025 | Updated September 2026, 2 weeks ago

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We attempt to revive a TV-2B\U military electron tube tester, which is mighty good but mighty complicated.

Stuff that supports the channel:
- Support us on Patreon: patreon.com/curiousmarc
- Amazon links for the tools I use in the lab: curiousmarc.com/amazon-links
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"Elevator Music" Credit: Crinoline Dreams by Kevin MacLeod

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Get more technical info on the companion site: curiousmarc.com
Contact info: youtube.com/curiousmarc/about

00:00 The TV-2B/U tube tester
02:08 Grand Opening
04:05 Initial Inspection
04:52 Resistors and Caps Check
07:11 First fault discovered
08:17 Wafer Switch Removal and Repair
13:40 HV cables, front panel clean and other repairs
18:49 First turn on - no dice
21:13 Power debug and repair
23:11 It lives!
25:27 First tube test