This circuit is from an American publication of the 80's. It makes use of components of the time. However, the circuit is the basis for a modern shield application since the input is TTL.
We found this circuit in a 1967 American documentation. It is a transmitter for animal research,...
This version of the Pierce oscillator with the 2N3904 was found in the January 1994 issue of...
This dynamic mixer allows for smooth adjustment of the signal's passage from one channel to...