Smart Charger (CB26305E)

This circuit was found in Radio Electronics magazine from the 90's. The circuit is for small NiCad batteries.

| Clique na imagem para ampliar |

Phonographic oscillator (CB8247E)
This circuit was found in a Modern Transistor Workbook from 1965. The circuit sends signals from a...
Warning notice (CB7977E)
What this interesting circuit does is to warn that a note written on a paper has been removed and...
Counterphase FM Transmitter (CB19442E)
This transmitter with counterphase oscillator was obtained in a documentation from the 90s. The...