Found in an ancient American documentation, this circuit can generate signals up to 40 MHz for a Z80, microcontroller widely used at the time. The circuit must be powered with 5 V and also serves as a shield.
Other operational amplifiers from the same family such as MC34002, MC35001, MC34004 and MC35004 can...
This circuit for 12 V relays was found in the July 1992 Radio Electronics magazine. The circuit is set...
The figure shows how to add a Darlington stage to an operational amplifier in order to obtain a...