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sparkymike · 18th Sep 2021, 5:39 pm

Valve V6 should be an ECC 83. The valve in the recorder is an AT7. An AX7 would have been better match to the correct valve I believe as the AT7 does not have as much gain. Loft safari to the valve pile I guess.
Mike.

18th Sep 2021, 5:39 pm	#21
sparkymike Octode Join Date: Dec 2006 Location: Colchester, Essex, UK. Posts: 1,076	Re: Ferrograph part missing? Valve V6 should be an ECC 83. The valve in the recorder is an AT7. An AX7 would have been better match to the correct valve I believe as the AT7 does not have as much gain. Loft safari to the valve pile I guess. Mike.