Active with the output at the high level, this oscillator was found in November 1984 Radio Electronics magazine. The supply can be between 3 and 12 V and the output signal is rectangular.
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...