RGB to NTC Converter (CIR25260E)

This circuit may be of interest to restorers of old video equipment. We found it in the Radio Electronics magazine of December 1989.

| 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...