This circuit was found in a Popular Electronics from the 90s. The circuit uses a general purpose JFET. The coils depend on the signal range that must be amplified.
Found in a 1968 Mallory documentation, this circuit makes use of an integrated circuit of the...
We found this circuit in an EDN from the 90s. The circuit is a voltage quadruplicator using...
This circuit was obtained in a General Electric documentation from the 80's, and can be used as a...