Circuit for piezoelectric transducer (CB8968E)

This buzzer trigger can be used for small alarms. We find it in an 80’s American documentation. The supply can be done with voltages from 3 to 18 V.

| Clique na imagem para ampliar |

Multi Optical Sensor (CB20345E)
This circuit activates a relay by activating one of a series of optical sensors that can be...
Keyboard Audio Feedback (CB18485E)
We found this circuit in a 1980 documentation. The circuit produces popping or beeping sounds on a...
12 V to 110 V x 60 Hz Inverter (CB13913E)
This 12 V to 110 V inverter with 100 W was found in a 1977 Signetics manual. The transformer must...