This commercial receiver from the year 1958 uses two AA cells as Power supply. The circuit is intend to receive MW station and the transistors are germanium types not easy to find today.
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...