[q] drivers from an old TV - diyAudio
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Old 28th February 2012, 03:06 AM   #1
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Default [q] drivers from an old TV

I picked up 2 drivers from the old TV (phillips projection tv similar to this
http://download.p4c.philips.com/file...37_dfu_aen.pdf)

how do I determine the characteristics of the drivers -- so that then I can calculate out the enclosure for DIY build ?

is that even doable (I can post pics of the drivers)
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Old 28th February 2012, 03:16 AM   #2
mikje is offline mikje  United States
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You'll need something along the lines of a WT-3 (Woofer Tester). Without something of the sort, there's really no way to tell what the parameters are for an appropriate enclosure. Maybe someone can help by finding a spec sheet about the speaker. Pictures of the front and back, including any printing on the magnet, might help.
Sorry I couldn't have been at least somewhat helpful.
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Old 28th February 2012, 03:22 AM   #3
mikje is offline mikje  United States
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OK, I just found something that might be helpful. If you are a little handy, you could throw on of these together and see what you get.
Mike
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Old 28th February 2012, 03:38 AM   #4
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The Subwoofer DIY Page - Measurements

Do post pictures

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Old 28th February 2012, 06:50 AM   #5
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Look to the size of the TV as a guide, i.e. too big to bother, so OB or at least a relatively large ~aperiodic cab around 2-3 ft^3 and preferably as a TL. Note too the power supply specs is only flat from 100-10 kHz at 5% distortion, further confirming a typical TV's high Fs, Qts driver.

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Old 3rd March 2012, 02:59 AM   #6
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attached are the front and back
(took me a while to realize that the upload does not resize pics automatically, and instead I had to it)

the back has something written on it, not sure if of any importance

thanks in advance for the suggestions
Attached Images
File Type: jpg back_very_small.jpg (192.1 KB, 63 views)
File Type: jpg front_very_small.jpg (183.6 KB, 57 views)
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Old 3rd March 2012, 01:04 PM   #7
Ron E is offline Ron E  United States
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Quote:
Originally Posted by worker View Post
attached are the front and back
(took me a while to realize that the upload does not resize pics automatically, and instead I had to it)
http://www.cartchunk.org/audiotopics...MeasureFAQ.pdf
epanorama.net/Speaker element Thiele-Small parameters

Your PC with a sound card and a tone generator software can be the signal generator/frequency counter. All you need is an amplifier and a resistor and a voltmeter. Or you can build a simple jig and use speaker workshop.
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Last edited by Ron E; 3rd March 2012 at 01:08 PM.
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