Quad 33 power supply caps.

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01-Jun-2019 08:58 PM

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Posts: 42

I have two Quad 33's and one has C503 and C504 capacitors in the power supply and one does not. Both working. Is there an explanation for that.

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02-Jun-2019 06:07 AM

EJP

EJP

Posts: 1644

Does it have a regulator IC? 7812 or 7815? If so it may have been modified in accordance with the blog article of August 2007. Note that with this modification it is also possible to place the 10uF capacitor shown at C500 in the holes where the zener diode was.

EJP

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