Found in English documentation from the 1990s, this circuit can employ equivalent components. The capacitor must be low leak type. The circuit can operate as a shield.
This circuit is from a publication from the 50's. Inductive components are critical, and...
This simple two-transistor circuit used transistors from the 60s, having been found in a...
This circuit uses an oscillator that generates a signal of approximately 1450 kHz to test...