This small analog TV transmitter was found in an Electronics Now from the 90s. The range is around 20 meters, and the coils are according to the channel on which you want to receive the signal.
This circuit was found in an American publication from the 1980s. The transistor can be the BD135...
This simple two-transistor receiver was found in Radio Electronics magazine from September 1960....
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...