Found in a National Semiconductor manual, this circuit is intended for data transmission over a twisted pair, the signals being obtained from a photodiode.
The circuit of the figure is a current regulator with adjustment in the range of 0 to 3 amps. The...
This circuit is suggested by Texas Instruments' Linear Circuits Applications. It consists of an...
This small telegraph transmitter has a range of a few meters, operating at a frequency that...