This 1967 Motorola circuit is intended for operation with signals up to 250 MHz delivering a 50 MHz signal at the output. The transistor is the MM1941, uncommon today.
This Signetics circuit uses a double 555 (556) to generate tone bursts at frequencies determined by...
The sensor of this circuit is a thermistor of the same value as the adjustment circuit formed by...
This circuit indicates the intensity of RF signals up to more than 00 MHz and can be used as a...