This battery-powered micropower supply was shown in Radio Electronics magazine in 1991. The maximum current is 170 mA. and the integrated circuit is the MAX655 from Maxim.
This sound effect circuit is from a Radio Electronics magazine from December 1969. The transistors...
This few-watt amplifier was found in the August 1975 issue of Radio Electronics magazine. The...
We found this simple test of zener diodes in a 1978 publication. The potentiometer can be...