Regular DIYAudio contributor Mark Johnson has kindly released this project into the public domain. The impetus behind the project was the desire for the designer to safely use a low current, front panel switch of the anti-vandal type in power amplifiers. The board incorporates inrush current limiting, wiring for the on/of switch and an auxiliary…
Tag: power
DC Splitter for Bench PSU
There is often a need for a dual voltage supply when dealing with audio (op amps often require dual supplies for example) but there may not be a suitable one at hand. There is, however, usually a single supply, a wall adaptor, bench supply etc. and, at its most basic, all that is required to…
Headphones Dummy Load
A dummy load simulates your headphones by presenting the amplifier with an impedance as close to that of your headphones as possible, using high wattage resistors. There are a number of reasons you may wish to use this – but primarily you are able to protect your headphones and your hearing. You can use higher…