Found in an Elektor from the 90s, this circuit is suitable for viewing audio signals on an oscilloscope. The operational amplifier admits equivalent.
This is the suggested transmitter circuit for the CB16880E. The emitting LED must be a...
This timer activates a relay after a time interval of up to 15 minutes has elapsed, starting from...
This powerful regulator, shown in the figure is for 5V (TTL) is suggested by Motorola and makes use...