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  #201  
Old 09-10-2018, 06:08 PM
Paul Steinberg Paul Steinberg is offline
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Ed... you almost have the lighting circuit correct, however, the power (+) goes to one side of the bulb holder, and the fixture is always live at the center of the socket, and insulated from the body of the car, unlike most of the other lighting in the car. There is a second wire that goes to the roof fixture that provides a path to ground through the door jamb switch. When the door is opened, the light is illuminated. The reason that this is important to know, is because some of the LED bulbs are polarity sensitive. This means that if you install them backwards, they will not illuminate. When this happens, you have to remove the bulb, and reinstall it 180 degrees from the way you have removed it. Simple thing to do, and you have a 50/50 chance of getting them installed correctly the first time.

The GE#68 bulb is a double contact bulb, and as such, the brass isn't part of the electrical circuit. It is important to know this, and to NOT install a single contact bulb into the socket. If you do put the wrong bulb into the socket, you will cause a direct short across the two terminals, and blow the fuse.
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  #202  
Old 09-10-2018, 06:20 PM
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Kurt Arends Kurt Arends is offline
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One more reason to keep the car as it was built, IMHO!
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  #203  
Old 09-10-2018, 11:20 PM
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John ED Renstrom John ED Renstrom is offline
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Believe it or not there is a double contact bulb the grounds there the brass. I have a fist full of leds just that way. As i said people selling this stuff dont know what they are selling.

Asked one of them if they were 6 volt. They told me yes as long as you don't drop below 8 volts???
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  #204  
Old 09-12-2018, 10:53 AM
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Quote:
Originally Posted by John ED Renstrom View Post
Believe it or not there is a double contact bulb the grounds there the brass. I have a fist full of leds just that way. As i said people selling this stuff dont know what they are selling.

Asked one of them if they were 6 volt. They told me yes as long as you don't drop below 8 volts???
Thats always an encouraging answer. I was recommended to use superbrightleds.com from one of the cadillac groups on facebook. Others seem to have had success with it. We will see, as they should arrive Friday, same day as my dome covers.
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  #205  
Old 09-12-2018, 01:06 PM
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Used them before. I got all my 4 ft shop lights from them.out of the 50 we put in only one has failed in 3 years. But of course they are only the supplier not the builder. What i don't like is the completely different numbers. . Phillips has them numbered correct but at a price.
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  #206  
Old 09-14-2018, 10:27 AM
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Yesterday my 4 bulbs came in along with my dome covers. Dome cover fit perfect and the bulbs also fit good and were double contact as Paul mentioned.

Only slight problem I have with these LEDs is it works fine on the rear, but the rest of the lights it seems a tiny bit loose. I think the contacts on the bulb itself are not quite as deep so it doesnt connect as firmly.

I am unsure if I can adjust the fixture itself or if it would be safe and feasible to solder a little bit of extra padding onto each contact (on the bulb, not the housing!)

Im open to suggestions, my wife suggested I stuff aluminum foil in there. I told her "no no no, theres two contacts so that will complete the circuit"
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  #207  
Old 09-14-2018, 10:28 AM
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Almost forgot the pics
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  #208  
Old 09-14-2018, 10:33 AM
Paul Steinberg Paul Steinberg is offline
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As long as they work, don't worry about the bulb being a little loose. If you spray the inside of the fixture with some white paint, it might brighten and even the light from the bulb.
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  #209  
Old 09-14-2018, 10:57 AM
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Quote:
Originally Posted by Paul Steinberg View Post
As long as they work, don't worry about the bulb being a little loose. If you spray the inside of the fixture with some white paint, it might brighten and even the light from the bulb.
I forgot to mention the lights flicker a little as a result of the looseness, which made me a little concerned about fire risk. Thats the only reason I was thinking about padding it
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Last edited by Blake Sherwin; 09-14-2018 at 10:57 AM. Reason: typo
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  #210  
Old 09-14-2018, 12:29 PM
Paul Steinberg Paul Steinberg is offline
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Insert a paper match into the side of the bulb to tighten it after you remove the sulfur end. That should tighten it if it is loose where the brass part connects. If it is the soldered end, then I have no suggestion, since if you put a dab of solder on the ends of the tips of the bulb, the heat might destroy the circuitry of the LED. The only way that you will know for certain is if you try it.
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