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G1 Instument Light Prollems

  #1  
Old 11-18-2010, 03:58 PM
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Default G1 Instument Light Prollems

Does anyone have any idea what the technical term is for the little bulb sockets in the 83-85 Christmas-tree gauge?



I have the part number from the PET (900 631 132 90), but I can't find anyone who'll call it by any kind of industry term...
I think it's a "B8 Series" Twist-on socket, but I can't guess at the exact number.

Any help or direction would be awesome.

Also, has anyone heard of an over-voltage problem when replacing the incandescent bulbs with LED?
I bought a whole bunch of T5's earlier this year and swapped every bulb not soldered down (10+). As of right now, only one is left alive.
I've been meaning to break out the multimeter and test sockets, but pulling the dash apart is a b*tch, so I'm procrastinating.
I know they're getting power, but I'm afraid it may be too much. Either that or I bought a bad batch of Chinese junk.
 

Last edited by crazyhayseed; 11-18-2010 at 04:01 PM.
  #2  
Old 11-18-2010, 08:41 PM
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If you don't get the resistance right, you will fry the dimmer switch and more. Some guys have done it successfully without problems, others not so much.
 
  #3  
Old 11-22-2010, 07:08 PM
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I'm not sure about the switch, but the lights are failing prematurely.

I've yet to see an LED advertised with the resistance specified... or a failure rate for that matter.
 
  #4  
Old 11-22-2010, 07:31 PM
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BTW, that was far from helpful advice coming from a guy calling himself "doc".
 
  #5  
Old 11-22-2010, 10:19 PM
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Originally Posted by crazyhayseed View Post
I'm not sure about the switch, but the lights are failing prematurely.

I've yet to see an LED advertised with the resistance specified... or a failure rate for that matter.
It isn't the LED that has the resitor, you usually need to add resistors inline when upgrading to LED's.
 
  #6  
Old 11-23-2010, 06:52 AM
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Negative. The T5's have a small resistor inline hidden inside the plastic base.
I didn't look at the value, but I'd guess by the size at it being no more than 50Ω... prolly closer to 10

I suppose I could break out the magnifier and figure the bands if anyone is interested...
 

Last edited by crazyhayseed; 11-23-2010 at 07:04 AM.
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