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Vintage Synth Repair

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Message

Arp 2600 oscillator scaling problem.

2015-07-14 by Jim Blair

Hello!

I've been working on my 2600 (recapped and calibrated PSU, replacing sliders), and am closing in on the biggest issue. Osc 2's scaling is impossible to calibrate. So I assume that something on the osc board needs to be replaced.

Any suggestions on where I should focus first?


Thanks,


Jim

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