Amusing DIY mock-ups

tade · 2nd May 2005, 08:36 PM

Today i decided to prove to myself that ribbon tweeters actually work!
By the way. The T/S values are outstanding! Also, that i can burn holes in the foil with my amp cranked...

ingrast · 2nd May 2005, 09:30 PM

Ripples on the foil are vertical beam shaping?

Rodolfo

tade · 2nd May 2005, 09:34 PM

exactly.
also, they are spaced unevenly to break up standing waves. it is also difficult to see, but the ribbon has been given a longitudinal torsional twist to aid in vertical dispersion.

tade · 3rd May 2005, 02:01 AM

the following is a link to a video of another ribbon folly. it is simply tinfoil over a HD magnet... Not crossed over, and playing Bass Mekanik. FUN!!! My poooor amp...

http://www4.ncsu.edu/~tkwolick/ribbondeath.wmv

tomtt · 7th May 2005, 12:48 AM

My poooor amp...

http://www4.ncsu.edu/~tkwolick/ribbondeath.wmv [/B][/QUOTE]

a 70 volt line transformer goes a long way to avoid cookin amps, when such endeavors
are undertaken

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2nd May 2005, 09:30 PM	#2
ingrast diyAudio Member Join Date: Sep 2004 Location: Montevideo	Ripples on the foil are vertical beam shaping? Rodolfo

2nd May 2005, 09:34 PM	#3
tade diyAudio Member Join Date: Feb 2005 Location: Ralieigh nc	exactly. also, they are spaced unevenly to break up standing waves. it is also difficult to see, but the ribbon has been given a longitudinal torsional twist to aid in vertical dispersion.

3rd May 2005, 02:01 AM	#4
tade diyAudio Member Join Date: Feb 2005 Location: Ralieigh nc	the following is a link to a video of another ribbon folly. it is simply tinfoil over a HD magnet... Not crossed over, and playing Bass Mekanik. FUN!!! My poooor amp... http://www4.ncsu.edu/~tkwolick/ribbondeath.wmv

7th May 2005, 12:48 AM	#5
tomtt diyAudio Member Join Date: Aug 2002 Location: kansas city mo, and on occasion, around the world ... Blog Entries: 15	My poooor amp... http://www4.ncsu.edu/~tkwolick/ribbondeath.wmv [/B][/QUOTE] a 70 volt line transformer goes a long way to avoid cookin amps, when such endeavors are undertaken

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