We found this circuit in the January 1979 issue of Radio Electronics magazine. Components are still common today, with the 7106 display driver standing out.
This intercom for the 27 MHz band was found in a recent English documentation, working with a...
This interface was found in a Modern Electronics magazine from 1990. Although the circuit is...
The amplifier gain shown in the figure is given by R1. The circuit is valid for other photodiodes and is...