Hi Enzo,

Thanks so much for the help, you're always an amazing resource! I'm actually thinking of taking the preamp from his solid state amp and using a tube output section, so I think the Peavey Classic is a great place to start looking. I do also prefer to use all discrete transistors if possible, just because I'm more comfortable with that configuration.

Although I can't find a schematic for the amp I'm trying to capture the vibe of, at least I have the amp itself, so I think I'll draw out the traces of the PCB and do some signal tracing, and hopefully it'll be fairly easy to recreate its essence.

Hi Everybody,

First time poster, long time lurker. I have a lot of experience working on and designing tube amps, but have only dabbled a bit in solid state amps. I've been commissioned to design an amp for a friend ("commissioned" is a fancy way of saying build for free/fun) based on a beloved weirdo Japanese solid state amp he has. The amp is a Princeton "Prince" T-70 model. From the very little I've found about them, they seem to have been built by Panasonic. I'm not expecting anyone to be familiar with this particular amp, but I was hoping that maybe somebody was familiar with any other amp designs that used the C1815 transistor. I'm curious to see if there's a more common model (one with readily available schematic for example) that also used this NPN transistor as the basis of its pre-amp.

Any help or pointing in a direction would be infinitely appreciated! Thanks!