Hi Chris,
Beautitul work there! You've finally crossed over to the SE side, what circuit did you decide on? Your rectifier diodes look to be large bodied, are they something out of the ordinary? We need details Chris... push-pull pots, preamp gain?....
Take care!
dave
Hey Dave,
Thanks!
Ya a SE one! Haven't built one since my first build, a little Vibro Champ.
The circuit is something local amp company Trinity Amps designed. It's essentially a hot rodded Champ that covers a huge range of tones with only two tubes.
The amp is single channel with one 12AX7 and one power tube. The amp can take 6V6, 6L6, EL34, KT66, 5881 and more. Two modes Tweed and Tude. Tweed is a nice clean sound. Pull the volume pot for Tude mode which produces a great OD tone.
Also includes Treble, Bass, Master Volume and a Power Scaling controls. The Bass control also has a pullable Fat Switch. The back panel has speaker outputs, a bias switch for different tube types, a rotary switch for 4R, 8R and 16R output with 2.5K and 5K primaries selectable for each tap. I also added a mod for footswitch for a partial tonestack lift. This adds volume/gain and mids.
Cab is solid pine, box joints. No tolex but stain and varnish. Grill cloth is "wheat".
Speaker is a 10" Jensen Blackbird, a very nice balanced AlNiCo speaker.
Here is a schem hopefully it will explain it a bit better


O the diodes

I thought I had some UF4007s on hand. Turned out I didn't. Made a quick trip to Honson and picked up those suckers! They are an equivalent but just beefier in that they can have a higher voltage/current breakdown.