kiira
Well-known member
I've been getting some amp tech business by word of mouth lately (note to self: make those business cards Kiira!) and one of the jobs I've gotten is going through an old 7591 Class A Sano, getting it working right etc. It's an odd little beastie, cute though with the Jetson's grill cloth and sweet tremolo. It's cathode biased. Here's a page about the Sano amps http://www.larryjohnmcnally.com/sano_amps.html and here's the schematic for the amp itself http://www.larryjohnmcnally.com/sano3.pdf
The 7591s have about 320 volts on the plate... you can pull one of the two power tubes and the sound hardly changes.
The problem is the customer won't let me replace the two wire AC cord and cap to ground with a three wire cord. :shock: Like, why the hell not? He says he's been playing for 45 years and his friend Roy Buchanon didn't have his 2 wire AC cord replaced (Roy is playing this guys gold top on the cover of one of his albums). etc etc. :?
He loves Deluxe Reverbs and wanted me to put 6V6s in his Ampeg Gemini II (anotheer 7591 amp) but I told him forget it... if he wants a DR then I'll build him a DR but I won't waste my time and his money trying to make a Gemini II ( a great amp for what it does) into something it isn't. I'm also fixing up his Epiphone Comet (Gibson GA-15RVT - 6BQ5 outputs))
Kiira
The 7591s have about 320 volts on the plate... you can pull one of the two power tubes and the sound hardly changes.
The problem is the customer won't let me replace the two wire AC cord and cap to ground with a three wire cord. :shock: Like, why the hell not? He says he's been playing for 45 years and his friend Roy Buchanon didn't have his 2 wire AC cord replaced (Roy is playing this guys gold top on the cover of one of his albums). etc etc. :?
He loves Deluxe Reverbs and wanted me to put 6V6s in his Ampeg Gemini II (anotheer 7591 amp) but I told him forget it... if he wants a DR then I'll build him a DR but I won't waste my time and his money trying to make a Gemini II ( a great amp for what it does) into something it isn't. I'm also fixing up his Epiphone Comet (Gibson GA-15RVT - 6BQ5 outputs))
Kiira