The transistor on this mixer can be any general-purpose transistor. The number of entries can be changed. We found it in an old documentation. Input and output cables must be shielded.
This simple telephone amplifier can be used as an auxiliary amplifier for additional listening, without...
This circuit can be used in fiber optic links or even direct links to microcontrollers and other...
This article was obtained in a French magazine Nouvelle Electronique from 1994. It can be easily...