This biestable vox circuit was found in an old documentation. The circuit makes use of components of the time (80's) and can work as a shield since the power is 5 V.
The block shown in the figure, although it is known to many readers, is not always in everyone's memory...
The figure shows how to implement a stage with an emitter follower. The stage has high input...
This circuit was obtained from English documentation on FETs. The JFET can be any general purpose and...