This circuit was obtained in an old European publication on FETs. The FET admits equivalent and the feed must have good filtration. Signal input cables and output cables must be shielded.
This circuit is from an English magazine of 1974, but can still be assembled with the replacement of...
This circuit, using a unijunction transistor (UJT), converts a voltage applied to the input in a...
This circuit was found in documentation from the 80s. The circuit did not include resistors from...