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Overunity Machines Forum



Mechanical Resonance (Projects)

Started by Magluvin, March 25, 2016, 08:01:12 PM

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Magluvin

#81
April 19, 2016, 07:43:29 PM
Quote from: diegra on April 19, 2016, 06:16:29 PM
https://www.youtube.com/watch?v=PGLkwymPqEE

Hi Diegra

Very nice video!!  ;D ;)   Thanks for showing.   ;)   Nice place to work also. ;)


Mags

Magluvin

#82
April 19, 2016, 10:00:33 PM
Here is scope shots of repositioning the coils closer to the magnets. The first is what was in the last video going almost full swing, limited to 1v ac in. The Yel trace is the drive coil and the blue trace is the pickup coil on the left. The second pic is using 3/4x1/2 in n52. The blue trace voltage is the same as the input, just a little thinner. Not bad for an inefficient path for the magnets flux to the coil. ;) The blue trace is pretty low with the coils out where they were. The big mags help some, and removed one of the 3/8 from each side also.

Gotta work on a better mag/coil config. ;D

Mags

massive

#83
April 20, 2016, 04:07:33 PM
modern speakers are moving coil type over stationary core/magnet,
previous speakers were moving armature like shown in above pic

celestion , moving iron balanced armature patent  : #230,552 = 1925 ,  #245,704 = 1926
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