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Old 2nd Jul 2022, 11:26 am   #25
Spencervs
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Join Date: Apr 2011
Location: Grove Park, SE London
Posts: 382
Default Re: Faulty valves - Scrap or keep?

Could they be useful as dummies to check for shorts? I have been building a small radio that uses the mini battery types and I had a short which wiped out all three heaters! But in my backtracking and repairing where the shorts were occuring (dirty and shorting trimmer cap and lack of insulation for the base), I used the valves to still test the circuit before putting new functioning ones in that may blow again.

It occurred to me that it's only the heaters that blew, so while non functioning and trash, the rest of the internals will still at least connect to the right places, enabling me to check voltages to an extent. Though one doesn't want to be buried in valves. It also seems sad to throw away something in limited supply, but then if it's broken... What can one do?
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