Found in na 1970 EDN this circuit has a parallel regulation providing a symmetrical output of 15 V. The transistors are from that time.
This reverb effect was found in the December 1961 Radio Electronics magazine. It makes use of...
Found on Popular Electronics from the 1990s, this oscillator uses a general purpose transistor. The...
This simple 741 circuit was found in the August 1993 Electronics Now magazine. The source must be...