Used in satellite TV receptions in the 1980s, this circuit was found in the March 1980 issue of Radio Electronics magazine. Note the board layout.
The CK722 transistor used in this circuit is one of the first commercial types in the world. The...
This automatic dimmer for incandescent lamps was found in a European publication from the 1980s. The...
This traditional doubler configuration with the 555 can be found in other articles on the author’s site....