Found in old documentation, this circuit can be implemented even today with the use of a 2N2646 for the unijunction and a TIC106 for the SCR.
We found this circuit with JFETs in a Radio Electronics magazine from June 1969. The circuit has...
Indicated for frequency measurements, this circuit can operate with inputs up to 1 MHz. We found...
This general-purpose transistor audio amplifier was found in the March 1990 issue of Radio...