Hi all,I'm a newbie on this forum and need some help with a Guild amp.I have a Quantam amp in a Thunderbass frame/cabinet,s/n 01170,have schematics for a 7 tube and an 8 tube version,but mine is a 9 tube version with some varations.It arrived with 6550's for outputs,was expecting 8417's,has an extra tube on the power amp chassis,12AX7A or 12DW7 (7247) and the 300v regulated screen supply doesn't have a 9 pin socket and a 6GF7A,(dual dissimilar triode),it has an octal socket and a 7591,(output pentode).I've exhausted all my sources for info and can't find anything.Desperately
looking for a schematic or any kind of info about this version.In exchange,I'm willing to share my 40 plus years of bass playing and audio electronics knowledge,everything from tube and ss amps to live sound and spkr. reconing with anyone on this forum,willing to help anyone,anytime with anything I can.Currently playing in 3 bands and running a repair shop out of my home.I played a Guild Starfire in 75',wish I had it now.Looking forward to hearing from someone,thanks in advance,Mel.
looking for a schematic or any kind of info about this version.In exchange,I'm willing to share my 40 plus years of bass playing and audio electronics knowledge,everything from tube and ss amps to live sound and spkr. reconing with anyone on this forum,willing to help anyone,anytime with anything I can.Currently playing in 3 bands and running a repair shop out of my home.I played a Guild Starfire in 75',wish I had it now.Looking forward to hearing from someone,thanks in advance,Mel.