Soldano SP77 Tube Preamp

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Bill Fountain
Posts: 3
Joined: Thu Feb 25, 2021 2:23 pm

Soldano SP77 Tube Preamp

Post by Bill Fountain »

Good morning Mark,

As a newbie to the world of electronics and tube amps, I would love to understand how the channel switching for this preamp is desinged and what exactly makes one channel distort and the other stay clean.

I would love to see you build a clone of this preamp or the Soldano X88R.

Thank you for all your help and inspiration,
Bill
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blueglow
Posts: 141
Joined: Fri Feb 12, 2021 4:39 pm

Re: Soldano SP77 Tube Preamp

Post by blueglow »

As much as I'd like to, my list of "want to do" is long. Got a schematic you can post?
Bill Fountain
Posts: 3
Joined: Thu Feb 25, 2021 2:23 pm

Re: Soldano SP77 Tube Preamp

Post by Bill Fountain »

Good morning Mark,

Attached is the schematic for the Soldano SP-77 Preamp. I understand that it may not be feasible to build the preamp, but maybe making a video going through the power supply, switching circuit and the preamp section would be greatly appreciated.

Thanks again for all your inspiration,
Bill
Attachments
Soldano SP-77 Preamp.jpg
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