Vortex Sound Research

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What is actually warming up in vintage synths?

At the moment I’m fixing a Korg polysix (VCO) and a Roland JX-3p (DCO). Both seem to need time to warm up but for different reasons. The polysix improves its tuning over a few minutes, and the 3p starts in tune but with some dirty voices and then becomes normal over ~10 minutes. I’m no electronics expert so I’d be interested in knowing the basics of warming up a synth. Is it the voice chips that are literally warming up?

submitted by /u/mondayroast
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