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Cyburgs-Needle for Tangband W3-871S
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Old 28th April 2005, 06:26 PM   #31
Timn8ter is offline Timn8ter  United States
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Quote:


Some of these Pioneers were quite good, and most respond to a bit of tweaking.

Originally posted by Tweakmeister D
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Old 28th April 2005, 06:29 PM   #32
planet10 is offline planet10  Canada
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Cyburgs-Needle for Tangband W3-871S
4" car speakers... not quite what i was expecting. Do get some ductseal on the basket & fill out the magnet/basket junction so that it is smooth.

Puzzlecoat for sure. those shiny whizzers are kind of interesting, some PK on that wouldn't hurt -- and try the 98 cent tweak.

dave
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Old 28th April 2005, 06:56 PM   #33
Nuuk is offline Nuuk  United Kingdom
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Quote:
some PK on that wouldn't hurt -- and try the 98 cent tweak.
PK?

98 cent tweak?
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Old 28th April 2005, 07:43 PM   #34
Ropie is offline Ropie  United Kingdom
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Quote:
Originally posted by Nuuk


PK?

98 cent tweak?
PK = puzzlecoat, or you could try a mix of turpentine and damar varnish.

98 cent tweak, I think, is something to do with adjusting the whizzer cone with a piece of foam or rubber(?)
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Old 28th April 2005, 07:49 PM   #35
planet10 is offline planet10  Canada
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Quote:
Originally posted by Nuuk
PK?
http://www.t-linespeakers.org/design/tweeks.html

watered down white PVA wood glue is close enuff... dammar i find best on paper whizzers, but it is a widely used treatment. It would probably have little effect on the material of your whizzers.

Quote:
98 cent tweak?
i no longer have a link to Marc Wauters original treatise.... but it is now used to name any tweak that creates a support for the edge of the whizzer and some damping for the cavity it forms with the cone. My prefered implementation is a thin piece (8-10mm) of very low density foam cut into a strip just wide enuff into friction fit around the whizzer with one cut edge against the edge of the whizzer and the other edge resting on the cone. You want to get away with as little as possible or you can kill the dynamics. (attached is a drawing i did just the other day to illustrate the 98 cent tweak)

Click the image to open in full size.

You can just make it out in this pic (you can see one end not quite placed right -- i ended up cutting a fresh strip (pink to boot) -- these speakers are probably close relatives of yours, and yours could be put in the same class -- in UK you'd call it a 1 quid speaker.

http://www.t-linespeakers.org/FALL/2buck.html

These really got me going on the path of "a pretty musical speaker can be made for almost nothing" path.

dave
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Old 28th April 2005, 07:50 PM   #36
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oops, forgot the illustration....
Attached Images
File Type: gif 98cent-whizzer-trick.gif (9.1 KB, 4446 views)
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Old 28th April 2005, 08:25 PM   #37
Nuuk is offline Nuuk  United Kingdom
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Thanks Dave, I have some white glue here and some artists varnish. The whizzer cones are paper.

I did the whizzer cone tweek (foam) on a previous speaker and will try it on the Pioneers.
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Old 28th April 2005, 08:33 PM   #38
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We expect a report back... and more pictures.... isn't this fun?



dave
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Old 28th April 2005, 08:39 PM   #39
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One coat of diluted PVA glue already applied. The real stuff starts tomorrow!
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Old 28th April 2005, 08:53 PM   #40
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Quote:
Originally posted by Nuuk
One coat of diluted PVA glue already applied.
The cone gets a nice shiny finish with the 2nd coat. Don't forget the dustseal (bluetac, even plasticine) on the basket as it is probablythe single most effective mod.

dave
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