This circuit makes use of a stroboscopic tube, a component that no longer exists today. The circuit is from the 70's and can be adapted to use mains voltage.
This circuit can be used with any auio amplifier, converting it into a AM receiver. Antenna is a...
We obtained this circuit from the 1977 National Semiconductor FET Databook. The frequency depends only...
This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the...