Tom Wells said:It wouldn't be too hard to roll your own.
Tom Wells said:The old RCA receiving tube manuals all had schematics at the back that were actual RCA designs.
There were some quite simple pre-amp circuits; a few hours at most.
I recall the tape amp was eq'd for 7.5 ips.
If you have the room to spare, 6SN7s, etc sound even better than 12A_7s.
I am looking for a Magnecord PT-6, PT-63 or similar amplifier from their 50's reel-to-reel recorders. I am also interested in Gates remote preamps from the 60's such as MO-3638. Cheap restoration projects are welcome.
/Rikard