slammintone
Well-known member
- Joined
- Jul 19, 2001
- Messages
- 2,011
No telling what that Mojo-Heyboer OT was specc’d after. I do know that amps B+ was like 475 vDC. It was loudish and hardly distorted between 7-10. My early 90s BBRI had an excellent breakup and being only about 28watts I could greatly enjoy just letting it rip in my living room without frying my ears off. The previous owner had it running EL34s and had disconnected the tremolo also.I wonder if your output transformer is the earlier (RS) style, which had a different primary impedance than the later style (Drake?) and, therefore, a cleaner sound. I have Heyboers in my JTM45 build and it's good and dirty, just not as dirty as a lead-spec JMP.