Digital Oil Pressure Gauge (CB25336E)

This circuit was found in the July 1990 Radio Electronics magazine. It is based on the 3-digit indicator ICs CA3161 and CA3162.

| Clique na imagem para ampliar |

Constant current adapter (CB22269E)
This simple current control setup was found in documentation from the 60's. The low current...
Transistor Test (CB23589E)
This small general purpose and RF transistor tester appeared in a February 1958 Radio Electronics...
Broadband amplifier 1 (CB8406E)
Found in a 90s R-E Experimenter Handbook, this amplifier uses an integrated circuit from that...