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Vintage Synth Repair

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Re: [vintagesynthrepair] Discharging capacitors in your synths

2014-04-08 by Kevin Doheny

If everything is connected as "normal," capacitors should discharge through the circuits within a short time (say, 30 seconds) of removing power.� If the power supply is being tested without any load on it, then yes, the capacitors can retain a charge for a long time.� To discharge, use something on the order of a 100-ohm, 2-watt resistor and place it across the terminals of the capacitor until the voltage drops to near 0 (usually about 10 seconds, but it depends on the capacitor).�
---Kevin

f115@... wrote:

Hey everyone!

I'm just wondering what methods you use to properly dicharge the capacitance in a synth before you work on it. Thanks!

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