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.
This circuit is from a 1966 Motorola Field Effect Transistors Manual. The circuit makes use of...
This circuit was found in an American documentation from the 90's. The transistor is a general...
In the figure we have a high input impedance stage with a general purpose PNP transistor. An NPN transistor...