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.
In this 2001 circuit we have the way to trigger an SCR with a phototransistor. The circuit appears...
This circuit generates signals for adjustments in FIs of 10.7 MHz. The transistors can be BC548 or...
Indicated for applications in the analysis of logic circuits, this circuit was found in 90s Radio...