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Old 29th August 2015, 10:05 AM   #1
diyAudio Member
Join Date: Aug 2010
Default Licron Crystal lifetime?

Those of you who had tried out Licron Crystal, for how long have you had the bias voltage on since you coated your panels?

Just write down your experience.
1. How many hours have they been powered?
2. Bias voltage?
3. Spacing?
4. If you have had breakdowns, do you know the root cause?

From what i understand the oldest panel is about 12 years old by now?
I have not tried it myself, i must be the last one...
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Old 29th August 2015, 11:54 AM   #2
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Join Date: Feb 2008
Location: Savannah, GA
I first started using Licron Crystal 7 years ago. However, I've replaced my panels twice during that time, experimenting with different stator materials and segmentation. My most used panel (not currently using it) played about10 hours per week on average for about 5 years. The d/s spacing was .062 and bias voltage 2.7KV. Power to the bias supply was switched from the preamp so only on when the system was on. I never had any problems with the panels or noticed any degradation.
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Old 30th August 2015, 04:37 AM   #3
SyBorg is online now SyBorg  United States
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Join Date: Dec 2012
Location: Redondo Beach, CA
I've had one set of ESLs using Licron Crystal that I have had powered continuously for about 3 years. Have not noted any degradation or other issues. d/s 0.062, bias 3.2kV. All the others are newer or have been only powered during the listening time.
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Old Yesterday, 06:46 PM   #4
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Join Date: Jun 2005
Location: Fort Worth, Texas
I have built many sets of ESLs using Licron Crystal with > 5 years on them, none showing any change in sensitivity.
Most were D/S = 0.07 in. with 3.5kV, however there are two full range panels using D/S = 0.12 with 5.2kV.
Most are setup to switch on and off with the preamp, however there are some where the HV is left on all the time.

The only failures of Licron Crystal conductivity I know of were related to prolonged exposure to direct sunlight.
Licron Crystal, and many other conductive coatings, are not 100% UV resistant.
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