This circuit can be implemented with either TTL or CMOS logic. The speed depends on the logic used and the circuit can be used with microcontrollers, functioning as a shield.
This VCO makes use of an RC4558 which is an operational amplifier with characteristics close to...
This circuit can operate with different voltages, depending on the zener used. We found it in a...
This circuit can be used in the car to control the windscreen wipper or with other appliances at...