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 was obtained in a documentation from the 90's. Several common operational amplifiers...
This circuit was found in a 90s Hands On Electronics. It monitors the presence of voltage in a...
This circuit was suggested by General Electric / RCA in a 1980s documentation. The components are of...