The operational amplifier used in this circuit is uncommon nowadays. We obtained this circuit from documentation from the 1980s, but it can be adapted to use more modern equivalents.
The purpose of this circuit, which we find in an old American documentation, is to allow the...
This simple TTL electronic dice uses common anode displays. The circuit is from a March 1975 Radio...
This is the basic version of a gain 20 amplifier with the LM386 providing a few hundred...