This circuit was found in a 1980s documentation. The diodes may be general purpose diodes such as 1N34 or 1N60 and the indicator may be the lowest current range of a multimeter.
This circuit can be installed inside a toy space gun to produce a “Phaser” effect. The circuit is from...
Found in an English publication from 1967, this circuit generates 5 kHz signals with harmonics that...
The characteristics of this amplifier that does not require a symmetrical source are given in the...