DeadAstronaut's Chasm Reverb
Posted by
MAO on
URL: http://guitar-fx-layouts.238.s1.nabble.com/DeadAstronaut-s-Chasm-Reverb-tp30063.html
There's already a verified smaller layout with fewer cuts and links
posted here. I designed this layout so the brick would mount to the underside of the board, lined up the off-board wiring, have all the components laying down and holes to route the wires through the board.
Unfortunately, these obsessions resulted in a larger layout with a ton of cuts and links. But rotated clockwise, it still fits in a 125B. I did have to file down the side edges just a little.
The build doc is
hereNote: bottom IC is upside downUpdate - 06-12-2016: Cut (or omit) the link between Pins 2 & 4 of the brick, It's not needed as pins 2 & 4 are connected internally on the brick itself. Also, consider socketing the 47k resistor as this controls how fast the oscillation kicks in when the switch is engaged. VERIFIED 04-28-2016(I found a 2v drop across the 33R on mine, I lowered the value to 10R for a 0.64v drop)
(with temporary brick harness - recommended in case troubleshooting is needed!)

(and the payoff for all the extra cuts and links - tidy wiring)
1978 Gibson Les Paul Standard, Cherry Sunburst