Home-made Valve tester

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Home-made Valve tester

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Mike Watterson

Senior Engineer in Charge

Posts: 2,666
Reputation: 23
Location: Ireland

#3

17-11-2016, 06:57 PM

You could use though 500K pot for grid bias.
Or a bunch of alkaline AA cells (last about 10 years!)

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Messages In This Thread

Home-made Valve tester - by Sparks - 17-11-2016, 05:44 PM

RE: Home-made Valve tester - by pwdrive - 17-11-2016, 05:52 PM

RE: Home-made Valve tester - by Mike Watterson - 17-11-2016, 06:57 PM

RE: Home-made Valve tester - by Sparks - 17-11-2016, 07:23 PM

RE: Home-made Valve tester - by Mike Watterson - 17-11-2016, 09:11 PM

RE: Home-made Valve tester - by Sparks - 17-11-2016, 09:27 PM

RE: Home-made Valve tester - by ppppenguin - 18-11-2016, 12:45 AM

RE: Home-made Valve tester - by Sparks - 18-11-2016, 06:33 AM

RE: Home-made Valve tester - by ppppenguin - 18-11-2016, 08:50 AM

RE: Home-made Valve tester - by Terry - 18-11-2016, 09:19 AM

RE: Home-made Valve tester - by pwdrive - 18-11-2016, 08:30 AM

RE: Home-made Valve tester - by Mike Watterson - 18-11-2016, 04:07 PM

RE: Home-made Valve tester - by Sparks - 18-11-2016, 09:30 AM

RE: Home-made Valve tester - by Sparks - 18-11-2016, 09:39 AM

RE: Home-made Valve tester - by ppppenguin - 18-11-2016, 10:52 AM

RE: Home-made Valve tester - by Sparks - 18-11-2016, 12:08 PM

RE: Home-made Valve tester - by Sparks - 18-11-2016, 03:56 PM

RE: Home-made Valve tester - by pwdrive - 18-11-2016, 04:44 PM

RE: Home-made Valve tester - by Mike Watterson - 19-11-2016, 01:29 PM

RE: Home-made Valve tester - by pwdrive - 19-11-2016, 01:34 PM

RE: Home-made Valve tester - by pwdrive - 19-11-2016, 09:10 AM

RE: Home-made Valve tester - by Sparks - 19-11-2016, 03:20 PM

RE: Home-made Valve tester - by pwdrive - 19-11-2016, 03:36 PM

RE: Home-made Valve tester - by Sparks - 19-11-2016, 05:41 PM

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