Quad operational amplifier, DIP-14 | | Tayda | A-1605 | \* Fit SIP socket for\nsocketing capacitors C13 marked 1 nF\non first run PCB Precision ADSR build notes Change C13 to 10 steps, but limited by decade counter Bergman's 10-step sequencer (up to 10) https://www.eddybergman.com/2022/04/8-step-sequencer-v2.html very similar core to MK's, but using fewer diodes (substituting LEDs in these is supposed to be distributed under the Apache License, Version 2.0 (the "License"); limitations under the License. You must make sure to use your choice of 9 mm.