This old two-stage video amplifier uses integrated circuits that are not easily obtainable today. The circuit is for analog video and was found in an American 1980s documentation.
This circuit triples the frequency of a low-intensity signal and is suitable for VHF and UHF...
November 2016 - Maxim's MAX30003, an Analog Front End (AFE) for biopotentials with clinical grade...
If the input voltage falls below 12 V the LED glows up. Other voltages can be monitored by...