Found in documentation from the 90s, this circuit was used in communications receivers of the time. MOSFET is a component of the time, uncommon today.
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...