Distortion Free Pulse Delay (CB6661E)

This circuit of 1965 documentation makes use of a tunnel diode to retard a pulse without distortion. The components are from the era.

| Clique na imagem para ampliar |

Thermal control with thermistors (CB23578E)
This thermal control circuit appeared in Radio Electronics magazine in October 1958. The circuit is...
Medium Wave Radio TH 66B (CB18372E)
This small medium wave radio was manufactured in the 1960s in Japan. The circuit is powered by 4...
LED Voltmeter (CB16560E)
This circuit is from a 1988 publication. It makes use of an LM3914 LED driver circuit, still...