Suggested by General Electric in a 1967 publication, this circuit uses the D13T1, an uncommon SCR today. This component is triggered by the anode.
IDT ZSSC3230 Capacitive Sensor Signal Conditioner Available from Mouser Electronics stock, this IDT...
This circuit uses only two common transistors and provides good audio power in a speaker. Readers who...
This is the analog part of the previous circuit with the pressure sensor for the altimeter. The...