cooder

I say it all the time, but phaser is my favorite. The Circulator was one of my first PPCB builds I did before getting into the forums...

Goldfinger! (not verified of course)

@Bambalam You have and EL34/6CA7 or EF86/6267 in that stash of yours? You ever come across any Ates 12AX7? They’re basically RCA out of...

I'm working on a no-charge-pump version. It's looking good so far. Just a couple more tweaks...

Very cool! Those are 807s I guess? I built a single ended amp with them, still got a few spares from back in the day, similar age I...

They absolutely do!

I repair tube amps and radios so I'm always on the lookout to add to the stash. Inside one radio I was working on I found 2 tubes that...

I had to make a couple of edits to sheet 1. I had forgotten C3 and I had a duplicate ref des. This is the correct schematic. Here's...

Back when I was a young lad, my friend & roommate Richard bought a Black Finger. As per usual, I would cajole him into letting me take...

This thread could use more pics. I have some interesting Toshiba’s coming up that I’ve never seen. But for now How about some late 50’s...

Resembles the tonestack from the Boogie MK series

From building amps I have seen this kind of tone stack a lot! The .022µF caps, the 500-ish pF treble cap, the 33K slope resistor - these...

Whoooeeeeey, another interesting name for a pedal! But I suppose it's easy to guess what this pedal is all about! This is another...

Is it my mistake somewhere on a breadboard or MID adjustment is quite subtle?

It's the typical Marshall MID control. Fairly subtle and interacts with the TREBLE knob. It has the most effect when BASS & TREBLE are...