Found in an article in the August 1971 Radio Electronics magazine, this circuit supports 106 series SCRs and general-purpose transistors such as the BC.
In the figure we have the transmitter of a data transmission system with optical fiber suggested by...
This circuit was found in a 1969s American documentation. With modern components, it can be used...
The maximum input voltage of this circuit is 20V and the output current is 250 mA. The circuit is from...