Looper / sampler isd1820 (Lo-fi)

[Dud]

if you want add a reverb/echo circuit here’s maybe some way .

here’s some diy spring reverb idea

SPRING REVERB DIY experiment

2 spring reverb test The first with a recovered spring and a true schem (normally planned for a tank) work on 9V battery A DPDT switch for true bypass. [Spring reverb (2)] [Spring reverb (4)] [spring-reverb-schematic-sans-modif] The second one with a true tank but with a piece of circuit recovered and a little hack. With a power socket for 9V wall wart [spring reverb 2 (1)] [spring reverb 2 (2)]

and a PT2399 circuit more small and easy to add i think

Cheap pt2399 reverb/delay module diy

it’s a project that I did a while ago but maybe it can interest a few people. A delay module, made from a “flat reverb module PT2399” bought very cheap on the net. Modifications : Elongation and adjustment of Time: remove the resistance R27 on the PCB and replace it with a potentiometer of 100k + a resistance of 500 ohms Setting the Feedback: remove the resistor R21 on the PCB, add a trimpot of 22k and change the original potentiometer from 50k to 100k. Addi a CV entry with a vactrol (connec…