We found this circuit in the November 1992 Radio Electronics magazine. The circuit uses an LDR as a sensor and the transistor can be any general-purpose transistor.
Simple timers can be designed using inverters or any other gate that can be connected as inverter. Figure...
Texas Instruments UCC21225A is available from Mouser Electronics. It is an isolated gate driver...
Found in a 1980s documentation, this amplifier features high common mode rejection. The operating...