Dave Stinson did a successful replacement with 6AQ5s, and even made a conversion kit complete with PC board.   You might want to contact him and see if he has some left.

73 Mark K3MSB

On Fri, Nov 12, 2021 at 2:50 PM Steve WD8DAS via ARC5 <arc5@mailman.qth.net> wrote:

Thank you Mike, Ray, and David - great info.

I am thinking of using triode-connected 5763 tubes.


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