Phase indicator (CB8295E)

Found in 1980s documentation, this circuit indicates the phase of a three-phase signal from the power grid. The neon lamp is common.

| Clique na imagem para ampliar |

Electrolytic Comparator (CB10251E)
This circuit is from a 1975 magazine, but it is still current as all components are common. The...
50W Booster (CB23944E)
This PNP transistor power stage was found in the May 1969 issue of Radio Electronics magazine. The circuit...
Brightness Control (CB19408E)
This circuit is suitable for incandescent lamps but can be adapted to work with LEDs. The circuit is...