Found in an Elektor from the 90s, this circuit is suitable for viewing audio signals on an oscilloscope. The operational amplifier admits equivalent.
May 2017 - These new Digital to Analog converters from Texas Instruments, available from Mouser...
This simple alarm with SCR triggers a buzzer. It was found in the Encyclopedia of Electronic...
Found in American documentation, this circuit converts signals from the 27 MHz band for reception on an...