Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: joesatch on December 29, 2022, 10:26:48 am

Title: Shot in the dark question X88R
Post by: joesatch on December 29, 2022, 10:26:48 am

Does anyone have the plate voltages (V1,V2,V3 etc) on this unit? Not the B+ but the voltages at the plate on the preamp tubes? My B+ is around 360vdc before plate resistors on the various stages. This is a critical piece of information that is missing from the various schematics on the interwebs.

Title: Re: Shot in the dark question X88R
Post by: SILVERGUN on December 29, 2022, 11:59:30 am

I don't have your answer but 360V is dead on in the SLO. I don't imagine Soldano deviated very far from his favorite specs.
Just in case you haven't seen it:
Soldano Super Lead Overdrive Channel Circuit Analysis (ampbooks.com) (https://www.ampbooks.com/mobile/classic-circuits/soldano-slo/)