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That what they have is not a jellybean, so $3/ea for sketchy NOS on amazon ** CA3080 design is 1.6mm thick, 2-sided copper clad fiberglass. ENIG is unnecessary. Shipping for minimum order* of Fireball main PCBs (maybe the same size as traces - .3mm for non-power lines, .6mm if carrying power - MK uses a CA3080 OTA, an expensive and rare chip these days ($3/ea on amazon, maybe fakes) VCA MK's VCA Probably a straightforward build: one op-amp, four transistors and some example modules Latest commits for file .gitignore Initial commit README.md | 1 | SW_Push | Push button switch, normally open, two pins, 45° tilted D Momentary Switch, dual pole double throw, separate symbols K switch dual-pole double-throw DPDT 3pdt ON-ON D Screw terminal, single row, 01x03 D 2x5 pin shrouded header 2.54 mm spacing Pin header 2.54 mm spacing | | | U3 | 1 | B20k | Potentiometer | | | | Tayda | A-804 | | Tayda | A-826 | | Tayda | A-1121 | | S2.

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