This LED flasher was described in the Radio Electronics Experimenter magazine special issue of 1989. It was designed to be assembled with SMD components.
We found this amplifier circuit for inductive audio pickups in a documentation from the 70s. The...
The circuit is from Motorola's Linear Databook from 1990, but the configuration is current because...
This 6-transistor commercial radio with 6 V supply was found in a Japanese publication from the...