Found in old American documentation, this receiver transmits signals via the power grid. We can use it on links or remote control. The components admit equivalents.
We found this circuit in an old neon lamp application manual. The circuit stores a call. The...
This isolation circuit for audio signals was found in the August 1992 issue of Radio Electronics...
This fuzz uses only one transistor that can be the BC548. Signal input and output cables must be...