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Post subject: HRD Jewel Light dimming?
Posted: Sun Dec 14, 2008 9:12 am
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I recently bought a used HRDlx and after about 4 hours of jammin with a buddy of mine I noticed the jewel light was flickering almost to the point of going out (but when first turned on amp its nice and bright) no mods have been done to amp as far as I know. Does anyone know what could cause this?? should I be worried? I am new to tube amps, as far as I could tell there was no change in performance or volume when light was flickering.


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Posted: Tue Dec 16, 2008 11:09 am
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I would guess that a possibility would be that the light bulb is loose, or a loose connection to the bulb. Or maybe just a defective light bulb. My first try would be just to replace it with a new one and see what happens. I have the Hot Rod Deluxe, and once copied some instructions on replacing the Jewel light. This is it, below.

How do I replace a blown jewel light?
Okay, I know this is pretty obvious. The main question is what kind of bulb to replace it with and where to get it. You can find the bulb at your local RadioShack. It's a #47 bayonet lamp, and two cost about US$1.50.
There's not much to replacing the bulb, but if it's your first time it may be a little tricky. First, you unscrew the jewel cover. Second, you push down on the bulb because there's a spring underneath it. Third, you twist it with your finger in a counter-clockwise motion. The bulb will pop out. If you have trouble getting hold of the bulb, then use a piece of duct tape to help you get some grip. When you replace it just push it down and turn it clockwise. NOTE: If you want a different color jewel cover, you can get them from AES under "Guitar Amp Parts" --> "Jewels, Etc.." (They cost under US$2 each.) I've heard that purple was the coolest looking, but when mine lit up it looked pink! ;)

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Posted: Tue Dec 16, 2008 11:13 am
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Also........here is a site that might help you, and answer some of your other questions.

http://studentweb.eku.edu/justin_holton/

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"I won't be wronged, I won't be insulted, I won't be laid a hand on. I don't do these things to other people, and I require the same from them."-John Wayne


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