The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a transconductance operating and the power supply need not be symmetrical.
Obtained from a 1969 documentation, this circuit can operate at frequencies up to 500 Hz, counting up...
I got this circuit from a magazine in 1967. The magazine no longer exists, but the circuit that...
This circuit can be used with common drills connected to the 110 V network. With change of R1 and...