This circuit is from American documentation from 1970. It can be designed with a BC558 and for the operational, we can use equivalents. The FET can be the BF245.
This circuit was found in a 1993 publication. The L1 coil consists of 12 turns in a ferrite core...
January 2017 - Mouser Electronics is introducing new, ultra-thin Vishay Displays OLED modules. The new...
This high-power amplifier that comes close to 400 W peak uses unusual high-power transistors...