Quote:
Originally Posted by Leon Crampin
The cathode of this valve when used in a short superhet will be well above chassis potential to give the high value of AGC delay needed in a low gain set. EBL31s are scarce in their genuine octal based versions, and re-based EBL1s won't fit some sets such as the A22.
I would make or obtain a 1:1 heater transformer to supply this valve and fit (say) a 100k resistor between heater and cathode. Zapping an otherwise good valve is too risky.
Leon.
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Hello Leon - sounds like a plan to me.
What is the purpose of the 100k resistor?
Cheers - John