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Board index » DIY Forums » Vacuum Tubes / Thermionic Valves

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Testing LR8 Regulators

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Juancho

Post subject: Testing LR8 Regulators

Posted: 03 May 2018, 12:42

Joined: 25 May 2016, 16:30
Posts: 45

Hi All,
Can anyone remind me? I recall that one can only test an LR8 regulator under load and not without. Is that correct?
Cheers
David

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gofar99

Post subject: Re: Testing LR8 Regulators

Posted: 03 May 2018, 14:40

Project Author

Joined: 04 Jun 2008, 20:59
Posts: 3649
Location: Arizona, USA

Hi David, I posted this in the other thread

"Hi, A good question. I am not sure, but I always do. If you have it out of circuit then a small load ought to be fine. Calculate what a 1ma load would be and use that value resistance. Be careful not to short it out when testing as they have a tendency (like about 90% of the time) to fail immediately without warning."

Good listening
Bruce

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