Dynaco SCA-35 Integrated Amplifier

The Dyna SCA-35 integrated amp is a small 17 (or so) watt per channel integrated amplifier. It's a nice sweet sounding unit that is very musical and enjoyable, particularly if the tone controls are taken out of the circuit.

This Amplifier, like all vintage tube equipment, uses a multi-section metal can cap. These caps will go bad over time, and are getting harder and harder to find. I have designed a small circuit board to replace the multi-section cap and the resistors attached to it. This board bolts to the chassis using the original holes used to mount the original can capacitors. This board like all my other boards allows for significantly more power supply capacitance to be added if desired. This board also allows for each channel to have it's own output tube cathode bias resistors.

Dyna SCA-35 Power Supply Replacement Board

Dyna SCA-35 Schematic Part A

Dyna SCA-35 Schematic Part B

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Sheldon Stokes
PO Box 1158
Grantham NH 03753


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