Hey all, I am looking for some help to build an RF Modulator schematic from 1985. I was searching for a way to wirelessly transmit a UHF/VHF TV signal to an old portable TV I have and found a schematic on a website called Petlibrary (https://petlibrary.tripod.com/rfmod.htm).
My idea was to use an old digital set-top box with a small antenna to pick up the free-to-air signal, or perhaps a composite input, then modulate it, and again transmit it with an antenna to my portable TV. (This will also require modifying the box to run on a battery but I will get there eventually.)
It seems to be a detailed article but I don't have much experience modifying or building circuits on single layer prototype boards, nor do I have any experience with winding inductors. I will mention that I have done some research on replacement components and have seemed to found a decent list. If anyone could guide me on both what input I should use, and how I should lay out the circuit without the power circuit within (denoted by * on the website) it would be much appreciated!
My idea was to use an old digital set-top box with a small antenna to pick up the free-to-air signal, or perhaps a composite input, then modulate it, and again transmit it with an antenna to my portable TV. (This will also require modifying the box to run on a battery but I will get there eventually.)
It seems to be a detailed article but I don't have much experience modifying or building circuits on single layer prototype boards, nor do I have any experience with winding inductors. I will mention that I have done some research on replacement components and have seemed to found a decent list. If anyone could guide me on both what input I should use, and how I should lay out the circuit without the power circuit within (denoted by * on the website) it would be much appreciated!