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 |

FET Input Operational (CB13628E)
This configuration was obtained in a 1977 FET Databook. The circuit can be practically any JFET...
Negative Voltage Regulator 723 (CB5460E)
The integrated circuit used in this regulator is not very common today. The circuit is from old...
Constant Current Source II (CB19950E)
The operational used is uncommon today, but equivalents can be used. Unlike the previous one, this...