This circuit is from a 1968 publication. Here we have several types of resistive sensors with individual adjustments triggering a single SCR. Power depends on the type of sound device to be triggered.
The circuit presented is from the 1977’s Linear Integrated Circuits and MOSFETs from RCA. The...
Mouser Electronics counts on its stock with the new TAS6424-Q1 amplifiers from Texas Instruments....
We found this simple gain-50 current sensing circuit in a 2005 Linear Technology publication. The circuit...