This fast Schmitt trigger operates at frequencies from 10 Hz to 100 Hz, with very short rise time. The circuit is from an American documentation from 1968.
The presented circuit has compensation for cold junction. In addition to a voltage reference, it...
This circuit, from a 1976 documentation, uses a low power MOSFET that is difficult to obtain, but...
This circuit, with a few meters of range, can function as a wireless microphone or transmitter for media with...