Found in an 90s Electronic Design, this circuit provides a 110 dB output to a ceramic transducer. The transducer is of the type available at the time.
We found this circuit in a 1997 documentation. Power transistors must have good heat sinks. The...
This old circuit is from the era of analog televisions, serving for technicians to make...
e find this circuit in documentation for radio amateurs of 1974. The unijunction transistor can be...