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Vintage Synth Repair

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Re: Moog Prodigy: do capacitors model/type affect the sound?

2016-07-30 by marcmarc@...

"The question is, do the capacitors affect the actual sonic characteristics of the output signal?

Yes, they do as in when they are old, the sound gets less bright and might get distorted a little.
In the prodigy the Nippon-Chemi-con SL series are used for the audio and the 2 big ones in the power supply (standard good quality).
You may replace them by any standard cap from a renowed brand such as Nichicon. Panasonic, Vishay or Rubycon.

Choose your workvoltage higher than the originals and use 105C/2000Hours types .

The dry ones (metal coloured) of 5.6 UF are for decoupling the power supply lines and may be replace by 6.8UF/25V tantalium.

There is also a dry cap for the LFO with the rare value of 2.7 UF.
You may use a 2.2UF and at the rear of the baord solder a 470NF parallel to it.

Just recapped a Progidy: sound great again.

Good luck,

Marc Marc

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