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Old March 23rd 06, 11:35 AM posted to uk.rec.audio
mick
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Posts: 9
Default Back In The Real World III

On Wed, 22 Mar 2006 19:53:19 +0000, Keith G wrote:



OK, this one's a bit different (apologies if the cut & paste goes awry):

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"Hi Keith,
I stumbled upon your website in attempts to find info on fixing my Garrard
DD-75. It still works really well, but the light for the pitch control
burned out. The weird thing is, if I shine a flashlight on the light bulb,
it will illuminate for approximately 10 seconds. I can see that this bulb
is no ordinary bulb. Any recommendations on how fix it?"

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I don't know the answer. Presumably the light is a neon? If so, will any
neon that *will fit* do?



Given the age of the deck it's almost certainly a neon. Yep, just about
any should be ok. I suspect that the design used a highish current
(for a neon) though as it is being used for illumination rather than
indication. It probably has about 220k in series on 220/240v. It could
even be that the series resistor has "gone high" through running warm over
a long period. The neons tend to "silver" the inside of the glass, making
it translucent and cutting down the light output.

--
Mick (Working in a M$-free zone!)
Remove blockage to use my email address
Web: http://www.nascom.info & http://mixpix.batcave.net