Using an operational amplifier of the time, this circuit was obtained from a 90s Radio Electronics. The circuit covers the frequency range from 2 Hz to 20 kHz.
March 2017 - Texas Instruments is already making available through Mouser Electronics the LP5907 an...
We got this circuit in an old publication from 1978. The circuit uses a phototransistor and an...
This simple PWM control was found in American documentation. We can use any power transistor...