Blog

Long time ago I read about an interesting diagram of a regulated power supply in the Radio Amateurs Handbook (1965). Capable of delivering 160mA at 300Volts, this could power both my riaa-correction pre-pre and a preamplifier. As it turns out the power supply works pleasingly well. Although still struggling a bit with too much heat dissipated within the small chassis, it performs as promised and I do like the sonic signature. By the way, that heat does not come from the regulated power supply itself, but from the added preamplifiers' heater supply.. 
Below some pictures of the original article and the compact built.