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 Post subject: My Zenith 4G903
PostPosted: Jun Mon 18, 2012 2:06 pm 
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Joined: Jun Mon 18, 2012 2:00 pm
Posts: 1
I cant seem to get any reception with my Zenith 4g903. I am by no means a radio repairman, I was just hoping for some suggestions on why I cannot get reception. I there suppose to be an antenna? Please any help on this subject would be great.


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 Post subject: Re: My Zenith 4G903
PostPosted: Jun Mon 18, 2012 2:27 pm 
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Location: Pacific Northwest
Any number of things could be wrong with it. Does it make any noise at all?

Tom

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 Post subject: Re: My Zenith 4G903
PostPosted: Jun Mon 18, 2012 9:05 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Albuquerque, NM 87123
That's a portable so it should have a built-in antenna. I recommend you don't plug it in again until it is serviced, as damage can occur. The radio is 63 years old.


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 Post subject: Re: My Zenith 4G903
PostPosted: Jun Tue 19, 2012 1:32 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: ID 83301
remove


Last edited by Ken G on Jul Fri 20, 2012 8:25 am, edited 1 time in total.

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 Post subject: Re: My Zenith 4G903
PostPosted: Jun Tue 19, 2012 2:49 am 
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Location: Minneapolis, MN - USA
It does have a built-in antenna - the wire you see coming off the tuning capacitor leading up toward the face of the radio is one end of the loop antenna - it's hidden up there under the different parts & pieces. Did the radio work for you in the past? If so, how long ago was the last time you had it running? Do the tubes at least light up at this time? Schematic here:

http://www.nostalgiaair.org/PagesByMode ... 024845.pdf

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It's coming: http://www.nortonics.org


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 Post subject: Re: My Zenith 4G903
PostPosted: Jun Tue 19, 2012 4:45 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 13098
Location: Tennessee,USA
Save yourself a lot of time and trouble. Take it to someone that is familiar with working on tube equipment. There may be a vintage radio club, or amateur radio person nearby that would help.
Or, sell it to someone that is in the hobby.

Monkeying around until the thing 'works' could do more damage than good.
If the set does nothing, it could be many things. Bad power switch, bad cord, burned out tube, an open speaker, break in a curcuit board, hard to say.
I have one of these, and if I remember, the flip top dial turns the power on. Could be in that switch.

Is this your site?
http://www.ijunk.biz/items-for-sale.php

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 Post subject: Re: My Zenith 4G903
PostPosted: Jun Tue 19, 2012 1:02 pm 
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Joined: May Mon 17, 2010 6:47 am
Posts: 876
Location: Niles, MI
I serviced one of these for someone a few months ago. Nifty little radio. Flipping the lid open turns it on, and the loop antenna is hidden in the lid.

As others have said, it really should not be used until the wax paper and electrolytic capacitors are replaced, and possibly the selenium rectifier as well.

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