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Old 15th July 2009, 01:42 PM   #101
pongola is offline pongola  South Africa
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Looked at your photos Beautiful speakers.
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Old 15th July 2009, 02:16 PM   #102
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Thanks!
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Old 15th July 2009, 07:23 PM   #103
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Hi Jonas,

i was one of the guys who tried the sample of your coating.

I applied it to several ESL and i can tell you, that even testing ESL's stored outside in the garage for years charge perfectly when setup today. Your coating was clear transparent with i light red appearance.
The conductivity is exactly proportional to the dilution instruction you provided to the sample .

All i can say after ten years ! is that it is frustrating not having this coating avaiable anymore.

As you told me some month ago about the recipe of the coating, i was amazed about the simple kind of components and you are right, they arent avaiable anymore.

Now I use EC-Coating from martin-Jan and my experience of about 200 ESL's produced is the same way excellent. The only thing to mention is, that it took me a lot of trials to get it applied without stripes in the coating. Those stripes might not be critical functional, but i want thecoating to look as perfect as possible.

Summary: If you need a coating that works, last long, easy to apply.......take EC-Coating.


PS: I tried the römer and the ER coating as well. My result: I good result is a subject of random. Just a little bit high humidity when applied - no wetting. Just a little bit too cold/warm) when applied - conductivity is pingpong (low or high)

Capaciti
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Old 15th July 2009, 07:30 PM   #104
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If the recipe is out in the open, can we post it here for all to learn? And perhaps someone can get the required components? Just curious.
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Old 15th July 2009, 07:41 PM   #105
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Capaciti, I'm very grateful for Your positive judgement, I certainly need a clap on my shoulder. You do not get that too often nowadays.

arend-jan, I can give it away, but we have to ask Capaciti for permission.
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Old 16th July 2009, 03:03 AM   #106
Few is offline Few  United States
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Sy,
How is a point source of high voltage used to treat uniformly a large surface such as an ESL diaphragm? Do you just wave the Tesla coil in the vicinity of the diaphragm and let it choose where the arc is directed? Sorry if I'm missing something that's supposed to be obvious...
Few
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Old 16th July 2009, 03:05 AM   #107
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It'll be great if we can share different formulas that really work.

Wachara C.
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Old 16th July 2009, 03:39 AM   #108
SY is offline SY  United States
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Few, it's not a point, it's a wire about three or four inches wide in a coat-hanger geometry. The corona forms around it and, yes, you hold it near the film and move it around.
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Old 16th July 2009, 07:19 AM   #109
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Sy, can a 15 kV corona charger from a copier be used?
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Old 16th July 2009, 08:32 AM   #110
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Quote:
Originally posted by JonasKarud
Capaciti, I'm very grateful for Your positive judgement, I certainly need a clap on my shoulder. You do not get that too often nowadays.

arend-jan, I can give it away, but we have to ask Capaciti for permission.

The pink coloured one?
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