johnsonad
New member
I wasn't sure where to post this and technical topics seems a good fit.
I'm open to the idea of an alternate driver tube in my 300B amps which use the soft start board. Their operating point is; 350v, -75v, 50mA, 5k. I looked back though some old posts and saw the 6sn7 mentioned though I'm assuming it would need to be a 6sn7gt or gta due to the plate voltage. In my current set up (100dB sensitive speakers) this would work but I'm planning on using a pair of 95dB sensitive speakers and will need a little higher amplification factor I'm assuming (BeePre as the preamp)? Ideally I wouldn't have to change the board or if so, minimally and I understand that the socket would need changed or in the least rewired.
Given this, can anyone suggest an alternate tube to try? Would a 6072 (12ay7) be an option (amplification factor of 40)?
Thanks,
Aaron
I'm open to the idea of an alternate driver tube in my 300B amps which use the soft start board. Their operating point is; 350v, -75v, 50mA, 5k. I looked back though some old posts and saw the 6sn7 mentioned though I'm assuming it would need to be a 6sn7gt or gta due to the plate voltage. In my current set up (100dB sensitive speakers) this would work but I'm planning on using a pair of 95dB sensitive speakers and will need a little higher amplification factor I'm assuming (BeePre as the preamp)? Ideally I wouldn't have to change the board or if so, minimally and I understand that the socket would need changed or in the least rewired.
Given this, can anyone suggest an alternate tube to try? Would a 6072 (12ay7) be an option (amplification factor of 40)?
Thanks,
Aaron