Optical AC Switch with Triac (CB25856E)

This circuit can function as a high-power shield completely isolated from the power grid. We found it in the Electronics Now magazine of June 1995.

| Clique na imagem para ampliar |

Digital Clock Generator (CB24246E)
This TTL circuit is from a Radio Electronics magazine from February 1973. The circuit must be...
Operational RIAA Preamplifier (CB14846E)
Common operational amplifiers like the TL series, CA3140 and others can be used in this circuit...
Telegraphy Practice Oscillator (CB16348E)
This circuit uses only two common transistors and provides good audio power in a speaker. Readers who...