Broadband voltage follower (CB9344E)

This circuit was found in a 1970s General Electric documentation. Transistors are uncommon today.

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IR Remote Control Test (CB12297E)
We found this circuit in a 1978 publication. It is possible to detect the emission of infrared in remote...
Infrared Alarm (CB16907E)
This circuit with an optical path sensor was found in a 1995 documentation. The circuit fires...
Variable range moving point (CB25154E)
The figure shows how to use an LM3914 with a variable range moving point. The circuit has an...