Details
The PSU (Power Supply Unit) Cap-Diode Board is a universal power supply board suitable for use in most power amp projects in the diyAudio Store. It has been designed to allow CRC filtering recommended for FirstWatt and Burning Amp projects but can also be configured as a capacitor bank by placing jumpers in place of the CRC resistors. An R-C snubber circuit and load resistor is also provided separately per rail and a dual discrete rectifier board section. The rectifiers can accept either TO-3P/TO-247 “Big” diode packages or TO-220 diode packages. Onboard LEDs also provides a visual confirmation when the power supply is powered up.
The diode sections are pre-scored and can be easily snapped off.
- Accepts 4x35mm caps, 8x30mm caps or 8x25mm caps
- Suitable for up to 15 amps
- 1.6mm holes for transformer leads
Please post any questions you might have in the Power Supply Helpdesk Thread.

