Found in Radio Electronics from the 90s, this circuit is intended for analog TV applications of the time. The transistor used as well as the module are uncommon components today.
Here is an interesting circuit to be used in physics demonstrations involving energy...
This circuit, obtained from a 1978 publication, generates damped signals and can be used in...
We found this circuit in a manual of optoelectronics from Texas Instruments. In it photodiodes or...