Good amp, low damping factor. Simple design. I had one as a teen, growing up along with the PAS-3 preamp. It was before I discovered how good solid state amplification could be...
If I have understood well the critical parts of this design are :
- selenium diode ( replace with silicon )
- 7199 noise ( replace with 12 AU 7 )
- Quad cap ( direct replacement )
If I have understood well the critical parts of this design are :
- selenium diode ( replace with silicon )
- 7199 noise ( replace with 12 AU 7 )
- Quad cap ( direct replacement )
Probably a new driver board that uses 12AU7s instead of 7199s. I had one (bone stock except for new caps/diode/output tubes) for a year but sold it after building the WOPL. And adapting 6GH8s to where the 7199s go is a bad idea because I'm trying to hoard all those 6GH8s for my TVs.
Probably a new driver board that uses 12AU7s instead of 7199s. I had one (bone stock except for new caps/diode/output tubes) for a year but sold it after building the WOPL. And adapting 6GH8s to where the 7199s go is a bad idea because I'm trying to hoard all those 6GH8s for my TVs.