Found in an old Radio Electronics, this circuit applies to frequency meters for frequencies up to 100 MHz. The input impedance is in the order of 1 M ohm.
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...