Crap-Fi DelayVerified

From the post

I thought the delay freaks may like this interesting alternative to the pristine digital delays that you see all the time. This was put together by allesz at freestompboxes, and below is his description of the circuit:

"It is the results of my experiments with the ultra famous pt2399 chip.

It is a simple circuit and it works good but: the mix and repeats pot are a little interactive in quite a strange way (anyway they work different from a standard echo: to turn off the delay you don'use the mix pot, but you turn to zero the feedback pot) and the on off is a little bit noisy (the clip is recorded at low volume and you will hear kids (always noisy) and clicks so, mostly, the clicks are from the mechanical sound of the switch, but a little noise makes it to the amp too) in order to minimize the clicks the input is grounded on bypass.

The major differences between my schem and the others pt2399 projects I know are that I didn't use the opamp between pins 14 and 13 and I didn't put a cap between pin 2 and three (repeats sounded cleaner to me this way).

I put a small switch to select between long and short delay; the long delays are quite dirty

Anyway this is a dirty cheap crappy fi delay, so if you mind noise and fidelity look elsewhere; I know it can be perfected but for me it is good as it is."

Allesz clip can be heard here. To wire the switch so the input is grounded during bypass, use the method shown in my offboard wiring post.

Geiri's demo of his build: