We found this receiver circuit for modulated light in a 90s Popular Electronics. Equivalent audio amplifiers can be used. Transistors are commonly used.
This circuit, which can be used safely, has been obtained in a 1987 documentation. It consists of a...
We found this circuit in Electronics Now magazine from December 1995. Any operational amplifier can be...
PIC16F19197 Microcontroller Family Combines Battery-Friendly LCD Drive with Core Independent...