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 Post subject: National NC-100X speaker enclosure
PostPosted: Nov Thu 23, 2017 4:46 pm 
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Joined: Mar Thu 19, 2015 11:01 pm
Posts: 27
Thanks to all of the help that I have received from people on this site, my 1936 National NC-100X is now restored and working. When I got it, it was in pretty bad shape and did not have the accompanying speaker. I used an old Philco EM speaker and a Hammond output transformer, and they work well. Now I need a box for the speaker. Does anyone have a lead on where I might get an original? I can build something if necessary but it would be nice to have an original, if this 12-inch Philco would fit inside it. Or if the original had a working speaker in it.
Thanks!
73 Charles W4KEP bostian@vt.edu


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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Nov Fri 24, 2017 6:11 pm 
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Joined: May Fri 01, 2015 2:33 am
Posts: 959
Location: Roslyn,Pa 19001
Pretty sure the original was a 10". National also made an 8" and 10" pm spkr (in cabinets) but these are mostly use for the HRO series. They don't require a field coil and have a single output tube.

Terry N3GTE


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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Nov Fri 24, 2017 9:45 pm 
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Joined: Jun Sun 19, 2011 2:31 pm
Posts: 4825
National sold the DCS-8 and DCS-10 cabinets for the 8 and 10 inch speakers (the 8" came with the battery version of the NC-100) and these cabinets matched the NC-100. They also sold the set with a Rola G12 speaker but I have never seen that setup or what cabinet, if any, was included.

Since the NC-100 itself is only 9" tall I suspect the Rola 12" was intended for mounting in a custom floor standing cabinet like that seen with some of the RCA, Hammarlund, and Hallicrafters receivers of the 1930s.

Rodger WQ9E


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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Nov Sat 25, 2017 3:24 am 
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Joined: Oct Wed 01, 2014 1:20 pm
Posts: 85
Location: Wood River, Ill.
Charles,
For what it might be worth, my NC-100 came with a National speaker. It is a 10” in a black steel cabinet 12-1/8”W x 10-7/8”T x 10”Dp. The steel cabinet has a wooden box, made from 1/2” stock, finger jointed together, which fits tightly into the steel cabinet. It is painted black crinkle to match the radio. I don’t know if it would have been used with the NC-100X. It uses a field coil 10” driver. There is a simple round opening with grill cloth attached to the internal wooden box.

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Chris
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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Nov Sat 25, 2017 4:51 am 
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Joined: May Fri 01, 2015 2:33 am
Posts: 959
Location: Roslyn,Pa 19001
Looks like this except for the grille cloth.
https://www.flickr.com/photos/42774321@ ... ateposted/

Terry N3GTE


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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Nov Sat 25, 2017 6:14 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 3382
Location: Monterey California USA
Well, at the risk of hijacking this thread, does anyone know what this National speaker was intended for originally? Any transformers were not still installed in it but there is a Rola 8" (I think) cone in there. There was a transformer rather crudely hanging by its leads inside with a Navy type number that translates to something for the RAS, but I thought the RAS had a rack mount speaker nothing like this.


Attachments:
NationalSpeaker.jpg
NationalSpeaker.jpg [ 79.28 KiB | Viewed 313 times ]

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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Nov Sat 25, 2017 1:23 pm 
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Joined: Oct Sun 15, 2006 12:57 pm
Posts: 5328
For those interested in finding out which speakers went with their receiver, HERE IS A LINK to a list of the more popular models.

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Mike


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 Post subject: Re: National NC-100X speaker enclosure
PostPosted: Dec Fri 01, 2017 1:54 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 17991
Location: Warner Robins, GA
If you have the room, why not build or have built an open back speaker box for the speaker and make it large enough for the receiver to sit on?

I did that for my R-390 using a 12" field coil speaker with a separate audio amp in the speaker box. Sounds great.


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