Bump for an oldie but a goodie. 
I just picked up an SA200. It has a preamp tube on its way out (crackling, microphonic) so I'm replacing all three. And I must report that Roger and company have been very gracious and helpful with my questions; certainly these are the kinds of folks that you want to buy gear from.
My question -- and I think that I've read every single SA200 thread out there -- is this (in two parts): Has anybody replaced the 6N1P "phase inverter" preamp tube with the more-commonly-available 6922, or used any NOS tubes anywhere in the preamp section?
Thanks folks, this thread has been very helpful to me.
I just picked up an SA200. It has a preamp tube on its way out (crackling, microphonic) so I'm replacing all three. And I must report that Roger and company have been very gracious and helpful with my questions; certainly these are the kinds of folks that you want to buy gear from.
My question -- and I think that I've read every single SA200 thread out there -- is this (in two parts): Has anybody replaced the 6N1P "phase inverter" preamp tube with the more-commonly-available 6922, or used any NOS tubes anywhere in the preamp section?
Thanks folks, this thread has been very helpful to me.