Just got this Sonola 100G back from repair and restoration....
I'd written a longer account on this amp and the work done, but mistakenly erased it, so briefly....
...it needed....a new output transformer, replace power supply filter components, out of tolerance resistors in the preamp section, some bad film caps, replace the 6L6's, and a lot of labor time.
Before all the trouble....along with the "interesting" cabinet design...the best thing it had going for it was a fine sounding and quite pristine Jensen P15-P with a '57 date code. The best 15" speaker I've yet heard....I played my Tweed Pro and others through it and it excelled on all accounts.
The circuit of this amp was not quite a Guild 66J (or 100J with the 15" speaker). My amp guy found a 66J schematic that had some resemblance, but with his deep knowledge and experience he managed find his own way and got it working quite well.
He had some comments about some dodgy ideas in the design that I wish I understood enough to share....most of what he was saying was a bit over my head. Sorry for that!
Its got a big sound but balanced with a smooth high end.....the controls tend to favor the warm side of tone but I'm a firm believer in having a pedal EQ available when needed when it come to using the various oddball amps I've accumulated.
It works!.....its great!
Thought it needed a photo with "appropriate" guitars.....though a large pearly accordion would suit it well.
First thing that strikes me is that I need to get rid of that awful flat screen TV and find one like my parents old 50's Capehart.
D
I'd written a longer account on this amp and the work done, but mistakenly erased it, so briefly....
...it needed....a new output transformer, replace power supply filter components, out of tolerance resistors in the preamp section, some bad film caps, replace the 6L6's, and a lot of labor time.
Before all the trouble....along with the "interesting" cabinet design...the best thing it had going for it was a fine sounding and quite pristine Jensen P15-P with a '57 date code. The best 15" speaker I've yet heard....I played my Tweed Pro and others through it and it excelled on all accounts.
The circuit of this amp was not quite a Guild 66J (or 100J with the 15" speaker). My amp guy found a 66J schematic that had some resemblance, but with his deep knowledge and experience he managed find his own way and got it working quite well.
He had some comments about some dodgy ideas in the design that I wish I understood enough to share....most of what he was saying was a bit over my head. Sorry for that!
Its got a big sound but balanced with a smooth high end.....the controls tend to favor the warm side of tone but I'm a firm believer in having a pedal EQ available when needed when it come to using the various oddball amps I've accumulated.
It works!.....its great!
Thought it needed a photo with "appropriate" guitars.....though a large pearly accordion would suit it well.
First thing that strikes me is that I need to get rid of that awful flat screen TV and find one like my parents old 50's Capehart.
D
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