Found in an English documentation, this circuit serves as a receiver for modulated sources of ultrasound. The sensor is a ceramic capsule. Transistors are general purpose types.
This version operates in the opposite way to the previous one, triggering when light falls on the...
This circuit is from a cookbook to timers. The circuit is triggered by an external signal and,...
We found this circuit in the 1994 Linear Applications Handbook by National Semiconductor. The...