2 m range converter (CB20263E)

This converter for the 150 MHz band was found in an American documentation. Transistors are uncommon today and equivalents can be used.

| Clique na imagem para ampliar |

Astable LED (CB12038E)
This astable multivibrator configuration causes two LEDs to alternately flash at a frequency...
Simple Touch Switch (CB15424E)
In the figure we show our first circuit that consists of a simple touch switch capable of driving a...
EMG Monitor (CB13793E)
This electromyography monitor is from a 1978 publication on operational amplifiers. The components are...