twin t’inspired by the practical electronics rhythm generator still needs a bit of fine tuning but I recon 3 weeks!!! keyboard sequencer is nearly done swell as the big mumma delay! PS ignore those preset potentiometers! meant to be the type in the other modules poking through the front but did not have the right values for this specific proto. !! this one definitely needs the whole thing doing with polyester capacitors or similar thats for sure.
Ok so the 4011UBE 's turned up that @fredrik asked to test.
yes they do work however they do have more decay. If you drop the 4011UBE into the circuit as it is, the decay knob on max would cause the drums to oscillate, so in order for it to still be controllable to your liking with the preset potentiometers may I suggest to swap
with a higher resistance, I think the best bet is 470k which will give the preset potentiometer plenty of travel for you to adjust the decay knob to your liking.