Kevin J. wrote:
I have more portable radios than I know what to do with and was
wondering if I could somehow convert one of them for use as an
extremely low-powered AM transmitter for use around my apartment. I
need only a range of 10 feet or so and I really don't want to buy any
sort of kit as Part-15 regulations in the US prohibit their use but do
allow homebuilt units. I had one of those toys called a Wild Planet
Radio DJ that was FCC type-approved but it got misplaced in my last
move and now my old-time radio shows are just sitting there waiting to
return to life on my antique radios.

Or, should doing that prove impractical, how hard is it to learn how
to solder? :-)


I did that as a kid with tube type radio. I moved the connections to the
antenna coil
to replace the first IF coil. I connected the audio to the grid in place
of the antenna
coil. You have to re tune the oscillator and antenna coils to be on the
same frequency.

On tube type radios this was easy but on newer radios with a circuit
board, I don't know.

Bill K7NOM