This circuit is from an American publication of the 80's. It makes use of components of the time. However, the circuit is the basis for a modern shield application since the input is TTL.
This circuit with germanium transistors was found in a 1980s documentation. The circuit makes use...
Found in a Popular Electronics from 1992, this circuit was created to give effects to an...
The figure shows the basic circuit of a relaxation oscillator with operational amplifier. The...