Want to add tap tempo to a PT2399 delay? Using this chip from DIYSB and the layout below, you can add tap to any single PT2399 delay (Deep Blue Delay, Rebote, Faux Analog Echo, etc). The Pin 6 pad connects to the 6th pin of the PT2399, and the LED flashes at the rate of the tap.
This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.