Found in a 1968 Novel Electronics Circuit, this circuit compares two light intensities using common LDRs as sensors. Transistors can be modern PNP equivalents.
The operational amplifier used in this circuit is a low voltage type from Texas Instruments, being...
PWM signals can be used to produce sounds in a microcontroller. This circuit allows sounds to be...
We found this circuit with an operational transconductance amplifier in the Motorola Linear...