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Old 27th June 2006, 04:39 AM   #1
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Lightbulb Diy Ribbon Tweeter For ESL PANNEL.

Hi. In the monent i work a ESL Hybrides... I live in Chile, the electronics stores, have a low quanty of special and advances products. For ex. special condencers, coil, toroidal transformer the low power.....

In the moment restriged my project, for impossible buy a tororidal transformer (not have stores)... I work my project with a tradicional transformer... The tradicional transformer, out 10Khz to 20Khz gradual... 90 to 70dB SPL... My news pannel limit bandwidth... (220 to 10Khz efective respose ESL Pannel) in a theory... I not real test.

http://img138.imageshack.us/img138/7...ergleich9u.jpg

For compentation i thought a work a "RIBBON TWEETER"... RiBBON have a exellent responce in a high frecuences and clarity hi definition sound, similar a ESL)...
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Old 27th June 2006, 04:46 AM   #2
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In the Moment work a passive crossover, 24dB/oct.

- Orange: Woofer (E. Magnetic).
- Red : ESL Pannel
- Green : RiBBon Super tweeter
(1) Fade out 20dB (for cause of tradicional transformer and 12uM Mylar in 10Khz to 20Khz).
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Old 27th June 2006, 05:23 AM   #3
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aplaned a metalic aluminium for cook
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Old 27th June 2006, 05:25 AM   #4
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paste a Mylar with a rubber glue
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Old 27th June 2006, 05:29 AM   #5
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A prototipe, for test, is horrible !!!!! The good sound, mmmm very low presure (not have a transforme for impedance compensation)... In the moment i 2 used magnets the 3" (died car spk)... N and S...
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Old 27th June 2006, 06:03 AM   #6
Calvin is offline Calvin  Germany
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Hi PMS,

with access to the internet, You shouldn´t have problems to find a company selling You some toroids for Your panels.
Adding a ribbon to an ESL means just to give up on some very useful features of an ESL, like best step-response, highly linear acoustical phase response, resolution of detail, extremely low distortion and so on and so on. Too, the ribbon will probabely cost You more money than a good set of toroids.

jauu
Calvin
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Old 27th June 2006, 03:06 PM   #7
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- The problem Clavin, is a i have 18 years ago, and not have credit card for buy via internet !!!

- The cost of transport the USA to CHILE is very high... I student

Help Calvin please...

My e- mail pmscompany@gmail.com Is possible u buy a toroides, and, i send the money via WESTERN UNION... ?????


- SALUDOS

Quote:
Originally posted by Calvin
Hi PMS,

with access to the internet, You shouldn´t have problems to find a company selling You some toroids for Your panels.
Adding a ribbon to an ESL means just to give up on some very useful features of an ESL, like best step-response, highly linear acoustical phase response, resolution of detail, extremely low distortion and so on and so on. Too, the ribbon will probabely cost You more money than a good set of toroids.

jauu
Calvin
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Old 28th June 2006, 08:50 AM   #8
Calvin is offline Calvin  Germany
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Default help

Hi PMS,

we might do that, but I would like to ask You to have a look at Capaciti´s site and contact him. http://www.capaciti-diy.com/
As I understand he sells his toroidal trannies not just as part of a complete DIY-electrostat-set but as a single part too. This might be just the right thing for You.

jauu
Calvin
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Old 1st July 2006, 05:34 AM   #9
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Default Re: help

I prefer a standart Toroidal, identical a u setup (230-6v 50va). In Europe what is the cost for 4 toroides ????

- Saludos

Quote:
Originally posted by Calvin
Hi PMS,

we might do that, but I would like to ask You to have a look at Capaciti´s site and contact him. http://www.capaciti-diy.com/
As I understand he sells his toroidal trannies not just as part of a complete DIY-electrostat-set but as a single part too. This might be just the right thing for You.

jauu
Calvin
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Old 1st July 2006, 09:18 AM   #10
Calvin is offline Calvin  Germany
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Hi pmscompany,

cost is ~10-15€/part

jauuu
Calvin

BTW:
I hope pms doesn´t stand for PostMenstrualSyndrome!!!
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