This oscillator uses a small IF transformer taken from an old transistor radio. FET admits equivalents. The circuit can be used to calibrate radios.
This circuit turns on and off from pulses applied to the CLK input. The output 0 goes to the “’1"...
We have other similar setups on this site. This one is from September 1976 Radio Electronics. The...
An interesting basic circuit for projects is the one shown in the figure which consists of a...