With this passive circuit it is possible to modulated in amplitude a low intensity RF signal. The circuit is from old American documentation and uses a germanium diode as its main component.
Found in a Hands On Electronics from the 80's this circuit allows the reading of low resistances in...
The figure shows how to implement an inverter trigger using the LM3900. The LM3900 is a NORTON...
This stepper motor control was originally designed to use a PC's parallel port and is quite simple...