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Old 15th February 2009, 02:20 AM   #1
croat47 is offline croat47  United States
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Default Motorola Console Salvage

Through a great community called "Freecycle", I came across an old Motorola Console Stereo. While I have some questions about the amp posted in the Tubes section, I've also got a few about the drivers.

It seems the cabinet was loaded with Jensen "Special Design" drivers in some series parallel fashion with the following and their labels:

T-High: 50K638562 / 220839 / P5-VAH / C1 6328
T-Low: 50K638577 / 220831 / P525-WA / C1 6327
Mid: 50K638576 / 220839 / P525-WA / C1 6326
15" Woofer: 50C632259-C / 220840 / P15R / C5835 3

There is an extension cabinet, loaded similarly, save the woofer is 10" and labeled:

Motorola Golden Voice / 50K642740 / 575826

Each 4-driver compliment is 8-ohm. The only crossover component is an orange cardboard-cased 5uF Motorola cap that acts as high pass to the two "tweeters". With a finger tap, you can tell that the two "tweeters" are sporting different resonances. Everything else is running full range.

Any help is sorting out what I've got here would be most appreciated. All the magnets, including the 15" driver's, are very small, so my guess would be Alnico. I will try to post picks within the next couple of days. But, if anyone might know what these are and if they are worth hanging on to, that would be fantastic. Any posts of "They're junk, just ship them to me" will be a dead give away!

Last bit: all the cabinets were "open" backed in the sense that a protective hardboard cover was over the backs, but was full of ~1.5" holes. So, I've very tempted to throw the mid and two tweets on a narrow open baffle with some monopole bass support. The small magnets and low mass should be good in OB, yes?
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Old 15th February 2009, 03:14 AM   #2
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Yes.

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Old 15th February 2009, 03:37 AM   #3
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pictures?

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Old 15th February 2009, 12:11 PM   #4
croat47 is offline croat47  United States
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Working on it...give me a day. You will see the backdrop of a major renovation in one of the images.

But, the "mids" and "tweeters" are different in that the mids have ribs and the tweeters are smooth. Both have round holes as the open space rather than what is now a typical basket. The largest magnet on the 15" is not much larger than a votive candle (was the first visual reference looking around the LR).

Two other interesting aspects are that the surround is paper and formed into the cone and that the mids/woofers have a seam in the cone from what I imagine to be the forming process.

Pictures to follow in a day or so...
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Old 3rd March 2009, 02:37 AM   #5
croat47 is offline croat47  United States
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Can not seem to post pictures. Are BMP's valid?

No...they are not. Figured it out...
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Old 3rd March 2009, 02:46 AM   #6
croat47 is offline croat47  United States
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Front of "Low" Tweet (left) and Mid
Attached Images
File Type: jpg low t-m front copy.jpg (28.7 KB, 254 views)
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Old 3rd March 2009, 02:48 AM   #7
croat47 is offline croat47  United States
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Back of "Low" Tweet (left) and Mid
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File Type: jpg low t-m rear copy.jpg (37.5 KB, 248 views)
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Old 3rd March 2009, 02:52 AM   #8
croat47 is offline croat47  United States
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Back of "High" Tweeter. The cone is glossier on the front than the "Low" Tweeter...
Attached Images
File Type: jpg high tweet back copy.jpg (38.0 KB, 225 views)
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Old 3rd March 2009, 02:54 AM   #9
croat47 is offline croat47  United States
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Side profile of 10". Magnet is relatively large compared to cone size after you see the 15"...
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File Type: jpg 10 side copy.jpg (24.1 KB, 242 views)
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Old 3rd March 2009, 02:55 AM   #10
croat47 is offline croat47  United States
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15" Top...ish...

The magnet is tiny, but not seen in this image.
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File Type: jpg 15 top copy.jpg (27.7 KB, 247 views)
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