My first guitar tube amp

After I repaired a few old tube radios I realized that I am going to run out of a room to store them. As I put a piece of my soul into each project, I was not ready to give them away to anyone who doesn't really need them, which I believe can be measured by amount of money they are ready to pay for.

So I was looking for something giving me as much joy as the old tube radio restoration, but with a better market response. The answer came from my friend Anton, a software engineer and guitar player: the tube amps. 

I saw this being a great risk as I'm going to step into the area of unknown and brave the wilds full of musicians talking electronics. But the enticement was irresistible.

Please welcome Scavenger-1, first of its' kind, the radio guitar amp. 

First of all, a big shout out to Terry Dayton of D-LAB electronics for an inspection. You and Tony are the rockstars! Another thanks to my son who patiently playing again and again after I made another adjustment to the circuit. 

No re-inventing the wheel. Just a canonical Fender Champ like schematic build on the old radio chassis with the old radio tubes. A couple of 6SQ7s, 5Y4 as a rectifier, and 6V6 for output. I bought an old radio for $40, which sourced tubes, power transformer, chassis, and even pots. The only new things were an output transformer form Amazon ($35) and a couple of 1/4 jacks ($8).

This one was placed on the market for $120 to cover expenses and got sold in two hours. It also gave me new friends and some productive discussions on where to go next.

The two pots are volume and master volume. The idea is to be able separately break up second stage and output stage.