Hello

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Your participation is very interesting because I am in the process of putting a Drake L-7 back into service. I understand very well the electrical problem that you mention and the original diagram also worried me (open cathode circuit).

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I am French and it is already difficult to get a correct translation. Could you explain the abbreviations that you use and which do not seem universal to me:

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·???????? HV

·???????? B+

·???????? B-

·???????? MOF

·???????? CT

·???????? xfmr

·???????? millen(s)

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Could you send us a diagram

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On this L-7 do you know why the grids are not directly grounded (RFC 1)

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Thank you

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F1AMM

Fran?ois