Sequential without integrated (CB6768E)

This circuit is from a 1967 publication and applies to incandescent lamps up to 600 W. Triacs must be fitted with heat sinks.

| Clique na imagem para ampliar |

NAB Equalizer (CB7307E)
This circuit was found in an American audio documentation from 1968. The configuration can be...
DC to DC converter (CB9673E)
This converter uses an SG1524 integrated circuit, which is uncommon nowadays. The circuit is from...
Overtone Crystal Oscillator (CB6184E)
This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can...