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In Reply to: RE: What am I? posted by tomservo on July 15, 2016 at 08:31:09
I don't know what it's out of--I just got the speaker. The magnet return is just short of 5 inches long.
I measured the resistance across the various terminals.
Terminal 2 is common to all three windings. The heaviest wire measures a little over 1 ohm, the other (probable) field coil measures about 12 ohms, and the voice coil winding measures a little over 14 ohms, making it probably a 16 ohm speaker.
One member responded that it looks exactly like the speaker out of his jukebox. Anyone know who made those?
Follow Ups:
Hi Lee
Well i wouldn't be surprised if it was from a jute box or large console radio. Seeburg was in Chicago as were a number of loudspeaker mfr's.
There was;
Oxford loudspeakers
Cynaudigraph loudspeakers
Jensen Loudspeakers
Heppner loudspeaker (northern suburbs)
And i am sure i have forgotten a few Chicago companies
Also parts mfr's like Alpha products, Nu way and others.
I have to say the twin field coil winding is not as common as 1 winding and based on the basket design, it looks like an American driver, perhaps an RCA or Magnevox.
Here are some sample pictures;
http://www.canuckaudiomart.com/details/648998808-magnavox_15_field_coil_woofer_1950s/images/442367/
https://www.google.com/search?q=large+field+coil+woofer&source=lnms&tbm=isch&sa=X&ved=0ahUKEwic66jkkfjNAhWIlx4KHWNhB1QQ_AUICSgC&biw=1607&bih=919#imgrc=L9PghkaO-hdyzM%3A
http://edsgoodstuff.com/edscart/bmz_cache/5/538b18bf4e29a1a6c6811c39f9f2dbb4.image.600x450.jpg
http://thumbs.ebaystatic.com/images/g/p8AAAOSwmtJXbAX4/s-l225.jpg
I couldn't see the back cover but Jensen used a cap over many of it's drivers even after going to permanent magnets.
Hope that helps
Tom Danley
Danley Sound Labs
Thanks so much for the links to photos. It looks most like the Jensen. The basket style looks the same, as does the style of the numbers.
Yeah that's a good bet i think!.
Looks like a nice driver with a magnet return that large.
When I had my Seeburg speaker reconed back in 1981, the tech said it was a Jensen.
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