FM Stereo Generator...uses?

redrabbit · 13th November 2008, 05:00 AM

I have an older Marcom Stereo generator (FM).
I do not plan on starting a LPFM station, nor do I mess much with RF stuff.

Is there anything else this box is useful for ?....or is it destined for one of my wicked scrap parts tear-down ?
(picture a view from behind me....nuts, screws, wires, and capacitors exploding outward, from my frenzied dismantle.)

=RR=

wrenchone · 13th November 2008, 07:02 AM

If it works, why not sell it to someone who can use it and use the folding green thus generated on a pet project? I hate to see something potentially useful get torn down for scrap.

Nat Eddy · 13th November 2008, 03:24 PM

Can it be used to align FM tuners -- it would seem very useful if that's its purpose.

coloradosound · 13th November 2008, 03:37 PM

Would you be interested in selling?

redrabbit · 14th November 2008, 06:33 AM

Tell me how to quickly check if it is working.

=RR=

dmills · 14th November 2008, 07:50 PM

Stick a scope on the output, and see if a 19khz signal at lowish level is present when switched to stereo mode.

Then stick a 100Hz into ONE or the inputs and check that you get something that looks like a 100hz on the scope with the space between the waveform and the zero reference filled with 38Khz sine wave, you will see what I mean.

If it does that for both inputs, and has the 19Khz present, then it is most likely working.

Regards, Dan.

rockerhgf · 20th February 2009, 05:28 AM

does anyone have a achematic of one of this transmitters?? or smaller

coloradosound · 20th February 2009, 07:55 PM

It is not a transmitter. It only multiplexes the left and right
audio signals and generates the pilot signal for stereo.
Were you needing a schematic for the or a transmitter?

13th November 2008, 05:00 AM	#1
redrabbit diyAudio Member Join Date: Oct 2004	FM Stereo Generator...uses? I have an older Marcom Stereo generator (FM). I do not plan on starting a LPFM station, nor do I mess much with RF stuff. Is there anything else this box is useful for ?....or is it destined for one of my wicked scrap parts tear-down ? (picture a view from behind me....nuts, screws, wires, and capacitors exploding outward, from my frenzied dismantle.) =RR=

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13th November 2008, 07:02 AM	#2
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	If it works, why not sell it to someone who can use it and use the folding green thus generated on a pet project? I hate to see something potentially useful get torn down for scrap.

13th November 2008, 03:24 PM	#3
Nat Eddy diyAudio Member Join Date: Feb 2003 Location: Connecticut	Can it be used to align FM tuners -- it would seem very useful if that's its purpose.

13th November 2008, 03:37 PM	#4
coloradosound diyAudio Member Join Date: Nov 2005 Location: colorado	Would you be interested in selling?

14th November 2008, 06:33 AM	#5
redrabbit diyAudio Member Join Date: Oct 2004	Tell me how to quickly check if it is working. =RR=

14th November 2008, 07:50 PM	#6
dmills diyAudio Member Join Date: Aug 2008	Stick a scope on the output, and see if a 19khz signal at lowish level is present when switched to stereo mode. Then stick a 100Hz into ONE or the inputs and check that you get something that looks like a 100hz on the scope with the space between the waveform and the zero reference filled with 38Khz sine wave, you will see what I mean. If it does that for both inputs, and has the 19Khz present, then it is most likely working. Regards, Dan.

20th February 2009, 05:28 AM	#7
rockerhgf diyAudio Member Join Date: Feb 2009	does anyone have a achematic of one of this transmitters?? or smaller

20th February 2009, 07:55 PM	#8
coloradosound diyAudio Member Join Date: Nov 2005 Location: colorado	It is not a transmitter. It only multiplexes the left and right audio signals and generates the pilot signal for stereo. Were you needing a schematic for the or a transmitter?

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