Boombox as FM remote speaker

[buggyboy]

So, I was looking at a boombox today, and I had a thought.

I have a Telex soundmate (aar-10, channel L, 75.700 mhz) fm transmitter for hearing assistance...and I got to thinking, "why not modify a boombox to receive that frequency and use it as a remote speaker?".

I'm sure I've heard of radios having such a modification (something about spreading a coil further apart), although I may be remembering an am channel.

Can anyone theorize if this is possible?
thanks.

[tedanderson]

It is possible. If your boombox has an AUX input, you can use the earphone jack on the receiver pack to get the audio signal.

[buggyboy]

Sorry if I wasn't clear here. I was thinking that the fm reciever in the boombox could perhaps be modified to receive the locally broadcast sermon in the 75mhz band.

(I actually have one speaker set up at the moment using the method you mentioned of used a receiver pack and outputting to a speaker.)

Any thoughts welcome

[John Allen]

The Fm radio freq. range is locked on the logic IC chip. Unless you can reprogram a ROM (read only memory) chip, not likely.

[tropicalfish]

^Even in a turn-knob tuner? A digital one, yes... but an analog one.. I wouldn't really think so

[waynehoskins]

It would be much easier to find a general-coverage VHF receiver. To use a normal broadcast-band receiver, you'd have to drop the bottom end of the tuning range at least 13 megs lower, a significant move. You could probably easily move it less than a meg lower without much trouble, but that much lower and you're likely outside the bandpass filters anyhow.

If you have radio electronics knowledge, you could probably make it happen. On the other hand, if you have that knowledge, it'd be even easier to build one from scratch.

[buggyboy]

Alrighty then, thanks for the input. Bloody shame though. Boomboxes have everything one would need. battery powered, fm reciever, speakers. I've seen some old ones with the tuning knobs at garage sales and such if there is hope they can be used.

This leads me to a slightly broader question.
Can anyone point me to a cheap radio capable of receiving the 75hz broadcast from my telex soundmate?

The prices of the soundmate branded receivers are insane. I'm sure some Chinese company must make something that could be pressed into service.

The objective here being to have a few portable area-speakers so that, for example, if a sunday school class goes outside they can still hear a sermon.