Control switch (CB9264E)

Found in a 1969 EDN, this circuit uses components from that time. Modern equivalent transistors can be used.

| Clique na imagem para ampliar |

Divider with SUS (CB6819E)
This frequency divider with SUS was found in General Electric's 1967 documentation. Similar...
FSK Demodulator (CB4180E)
This space mark demodulator for FSK signals was found in an American telecommunication...
50 mA Battery Charger (CB878E)
This simple circuit is designed to charger AA or AAA Nicad batteries. Current can be changed...