This signal amplifier for ATV in the 427 to 439 MHz band was found in a magazine 73 for radio amateurs of the 90's. The circuit is installed next to the antenna on the mast itself.
Found in an American documentation from the 90's, this circuit aims to light a neon lamp with...
This transistor circuit consists of a well-known bass and treble control configuration. The...
This circuit was found in the September 1997 issue of Electronics Now magazine. The circuit uses...