This circuit is from the Motorola Linear Databook of 1990 and can be implemented with other operational amplifiers. The power supply must be symmetrical.
The scratch is the noise of scratching or scrape that occurs when scratched vinyl records are...
The purpose of this circuit is to eliminate RF picked up by a turntable. The circuit is from a...
The circuit shown uses an operational transconductance amplifier such as the LM3900. Transistors...