Found in a 90’s HAM Radio, this circuit is used for an optical communications system or even audio transmission by optical fiber. The components are common.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This range corresponds to the lowest TV channels, 2 and 3 specifically in VHF. The circuit is from...
We found this circuit in the magazine Eletcronics Now of July 1994. The power supply is according to...