This circuit is from the Motorola Linear Databook of 1990 and can be implemented with other operational amplifiers. The power supply must be symmetrical.
We present a circuit for those who want to give the impression that there are people at home when...
The integrated circuit used in this 1986 wireless microphone is not very common today. The L1 coil...
This circuit, which we found in a 1997 documentation, generates powerful signals around 1 MHz. Its...