This simple injector and signal follower employs a high impedance headset. Transistors can be of general use. The circuit is from old American documentation.
We found this circuit in a 1965 General Electric documentation. The circuit generates synchronized...
Found in Elektor Electronics from the 90s, this circuit can generate signals from 1 kHz to 9 MHz,...
This circuit was obtained from a 2005 Linear Technology manual. The circuit is self-powered and can...