Hi. Oh, it's just piece of wood glued on top of pole piece and holding copper tube
http://www.diyaudio.com/forums/showthread.php?postid=1653556#post1653556
sleeve would be better
maybe it's possible to do with thick copper foil and cheap woofer, they usually have large gaps between pole piece and coil.
http://www.diyaudio.com/forums/showthread.php?postid=1653556#post1653556
sleeve would be better
maybe it's possible to do with thick copper foil and cheap woofer, they usually have large gaps between pole piece and coil.
Hi. Oh, it's just piece of wood glued on top of pole piece and holding copper tube
Fast, fun, Inexpensive OB project - Page 9 - diyAudio
sleeve would be better
maybe it's possible to do with thick copper foil and cheap woofer, they usually have large gaps between pole piece and coil.
I tested this same thing. Look here: A quarter or third down
There's a chart showing inductance symmetry. The copper cup lowered inductance but increased the variance of the inductance with stroke, which is largely the distortion mechanism a shorting ring is meant to control.
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