We should probably call them "Utah framed" before another urban legend is born.You see a few Utah 803As from time to time.
Otherwise, there's gonna be folks out there claiming their 803's, 600B's, and a handful of field coil 601's were made by Utah just like their model 14, and 15 woofers were made by RCA.
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Last edited by Cal Weldon; September 21st, 2014 at 02:49 PM.
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Hi guys, just getting caught up again with this thread. AFAIK a Utah frame first shows up in an Altec product with the appearance of the 601 field coil Duplex in 1943 or so. At about the same time the Iconic woofer became the 815U with the Utah stamped steel basket, and other utility grade speakers used the same basket and received a U designation:
1943
Note this Utah basket has four holes; the six holer seems to have come along a few years later. Utah continued to use both frames for decades. I have a dozen four holer frames from the Seeburg Discotheque systems that a friend and I had collected for a run of repro 601 Duplexes... hasn't happened yet.

Steve to the best info I have it was during WW II when aluminum could not be had even if you sold your soul. That fits with your info.
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Cast aluminum or stamped steel? Why would a well designed stamped steel basket be any way inferior to a cast aluminum one?
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As bowtie mentioned, the only mention of the 806-8B is in the 1975 catalogue.
Link http://lansingheritage.org/images/al...ome/page05.jpg
Same catalogue with 'pictures' http://lansingheritage.org/images/al...ome/page18.jpg
It is also the only place I've seen a mention/artistic image of the 802-8E, which I believe went into production/became the 802-8G.
Last edited by magnarc; September 21st, 2014 at 02:31 AM.

Not quite.
The 1976 Home Catalog specifies the 806-8B as the HF component for the A7-8 system. You can also see the 802-8E mentioned (and even pictured) a few times in that same document.
The 802-8E is also referenced in a few pro catalogs in that '75/'76 period mainly as components for A7-8 systems.
It looks like during 75/76 that the 806-8B, being the smaller driver was used for 800 Hz crossover applications, while the 802-8E was the bigger 500 Hz unit. It is interesting that the late '75 service/repair catalog was still showing 806-8A as the HF component for these 800Hz systems.
By later in 1976, the 802-8G had apparently replaced the 802-8E for 500Hz applications...I suppose that coincides with the release of the tangerine phase plug?
- Mike
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