This circuit with TTL compatible output was found in a 1968 US documentation. The circuit is powered by 5 V and the frequency can be changed by changing the crystal.
Using one unijunction transistor and two bipolar transistors, this circuit generates a signal from...
This circuit makes the RIAA equalization for signals obtained from a turntable for signal recovery in other...
In critical applications of the RS-232 interface, the danger of induced voltages in the cables must...