Tunnel diode trigger (CB21468E)

This circuit was taken from old American documentation. With it, it is possible to generate pulses like a Schmitt trigger, but using a tunnel diode.

| Clique na imagem para ampliar |

Simple VHF Receiver (CB19598E)
This VHF receiver with three transistors and loudspeaker listening was found in European...
Liquid level sensor (CB23807E)
This sensor was published in Radio Electronics magazine in April 1962. The two-transistor circuit...
Monostable LM3900 (CB19295E)
This circuit consists of a monostable multivibrator using the LM3900 transconductance operational...