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PostPosted: Tue Jan 12, 2016 10:30 am 
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Joined: Sat Oct 15, 2011 7:56 pm
Posts: 10
Location: Mississauga, ON, CA
I'm rebuilding a WWII era radio and need a new speaker. 5" with field coil. Any suggestions, other than garage sales and antique markets ?
Also interested on good articles relating to rebuilding antique radios.
Thanks


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PostPosted: Tue Jan 12, 2016 10:53 am 
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Joined: Wed Feb 06, 2008 2:04 pm
Posts: 663
Location: London, ON, CA
Try Canadian Vintage Radio Society.

If you are trying to restore this radio to original condition, then
you do need to find a field coil speaker.

If you can accept some modern technology (1950's) then you can replace
the field coil winding with a small choke from a tube power supply.
Then use an ordinary speaker of the matching size.
Be careful that some of these radios also had the audio output transformer
mounted on the speaker.

Good luck!


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PostPosted: Tue Jan 12, 2016 11:23 am 
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Joined: Tue Dec 28, 2004 4:38 pm
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Location: Niagara Region, ON, CA
Search "antique radio" on Kijiji. There are many pages, as well as techs posting ads. Potential they may have something or can steer you in the right direction.


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PostPosted: Tue Jan 12, 2016 11:43 am 
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Joined: Sat Oct 15, 2011 7:56 pm
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Location: Mississauga, ON, CA
Thanks. This does have he output transformer on the speaker. That's whats throwing me off re getting a replacement. I'm new at this.
"small choke?" I will google this. Probably not what my son does to his younger sister when they fight. .
Cheers


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PostPosted: Tue Jan 12, 2016 12:27 pm 
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Location: London, ON, CA
jasonh1965 wrote:
Thanks. This does have he output transformer on the speaker. That's whats throwing me off re getting a replacement. I'm new at this.
"small choke?" I will google this. Probably not what my son does to his younger sister when they fight. .
Cheers


If you can remove the output transformer from the old speaker then you have a great start to a solution by reusing it on an ordinary speaker.

It's a power supply choke that you need to replace the field coil.
Something similar to this:
http://canada.newark.com/triad-magnetic ... Fixed_None

Hopefully someone at the vintage radio site can help you get the details right in finding a choke?


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PostPosted: Tue Jan 12, 2016 1:56 pm 
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Joined: Wed Feb 06, 2008 2:04 pm
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Location: London, ON, CA
Sorry, forgot the link:

http://www.canadianvintageradio.com/


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