This circuit makes use of an unusual Analog Devices component today. The circuit is from a 90's documentation. The amplifier has 80 dB gain.
We found this circuit in an old General Electric documentation. In fact, PUTs are not common...
This circuit for analog video signals was found in a March 1988 Radio Electronics. The Maxim...
The circuit shown in the figure can be used to detect the operation of infrared sources whose...