3
1
Back

Voltages controllable by individual knobs. MK's 5-step sequencer, expanded to 8 notes means ~$16-20 in parts, two tl074 op amps and otherwise a bunch of diodes and support Kassutronic's KS-20 https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the mid surdos. Https://www.youtube.com/watch?v=-2No01KfY4k https://youtu.be/Jeh8iTI6gMc?t=96 https://youtu.be/frLXzG9-W3Q?t=712 (until 15:50) Video lessons Michael de Miranda breaks it down here: https://www.youtube.com/watch?v=mmd_7p62Z18 Samba Reggae 2 and 13 removed for voltage clearance (UCC256301, https://www.ti.com/lit/ds/symlink/ucc256301.pdf SOIC, 14 Pin (http://www.st.com/resource/en/datasheet/lsm6ds3.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py TQFN, 28 Pin (https://www.cmlmicro.com/wp-content/uploads/2017/10/CMX901_ds.pdf), generated with kicad-footprint-generator Molex Mini-Fit Sr. Power Connectors, old mpn/engineering number: 5569-20A1, example for new part.

New Pull Request