Diode test (CB20735E)

This simple diode test appears at other points in this section. Or circuit can be adapted to use LEDs instead of ordinary lamps.

| Clique na imagem para ampliar |

Selection of diode inputs (CB4111E)
This circuit is used in transceivers, enabling input selection by diode switching through polarity...
One Quadrant Logarithmic Converter (CB15070E)
This configuration was found in an American publication from the 90s. Operators admit equivalents just...
Fire Detector (CB13985E)
This circuit was found in an Italian magazine Elettronica Prática of 1977. The transistors can be...