We found this transistorized circuit in a 1985 documentation. The circuit can operate with voltages from 9 to 12 V and the adjustment of the operating point or input sensitivity is done in P1.
This circuit, from a technical documentation from the 1970s, converts a low frequency sinusoidal signal...
This circuit consists of an emitter follower, presenting unit voltage gain implemented with an...
This siren was found in a 1980s documentation. The circuit makes use of very old operational that were...