This circuit was found in an American documentation from 1969. It serves to trigger circuits by providing a 7.5 V signal at the output from 500 mV pulses.
The amplifier shown in the figure was obtained from the Anlog Devices linear integrated circuits...
If the reader still uses silk screen printing tables this is an interesting circuit found in a 1994...
This circuit monitors the output of a stereo amplifier, checking the balance and balance between...