Bulb question
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Race Director
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From: Close to DC
C2 of the Year Finalist - Modified 2020
Bulb question
I'm completing the resto of my gauge cluster and all light bulbs.The one bulb that is the most odd is the one under the clock and lights the heater controls. The number is GE1893. In the event that I can't find a replacement, what about using a GE1816. The specs are very close, or is there another that will work? 
Dennis
Dennis
Tech Contributor
Joined: May 2005
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From: Conroe Texas
An 1816 will pull a fraction of an amp more (my testing showed 3/100ths of an amp more) than an 1893. Specifically, installing 1816s versus 1893s into my 65 cluster consistently showed a .31-.35 Amp impact for an 1816 bulb, .28 Amp impact for the 1893 bulbs, as the current was measured at the fuse panel. (Reference is my old horror thread...http://forums.corvetteforum.com/1557379796-post259.html)
But I don't imagine you'll have any trouble finding 1893s at your local FLAPS
But I don't imagine you'll have any trouble finding 1893s at your local FLAPS
Last edited by 62Jeff; Feb 21, 2010 at 04:02 PM.
Le Mans Master
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From: Houston Texas
St. Jude Donor '10-'12-'13
An 1816 will pull a fraction of an amp more (my testing showed 3/100ths of an amp more) than an 1893. Specifically, installing 1816s versus 1893s into my 65 cluster consistently showed a .31-.35 Amp impact for an 1816 bulb, .28 Amp impact for the 1893 bulbs, as the current was measured at the fuse panel. (Reference is my old horror thread...http://forums.corvetteforum.com/1557379796-post259.html)
But I don't imagine you'll have any trouble finding 1893s at your local FLAPS
But I don't imagine you'll have any trouble finding 1893s at your local FLAPS
Tech Contributor
Joined: May 2005
Posts: 15,576
Likes: 118
From: Conroe Texas
Black_Magic put them in his car http://forums.corvetteforum.com/c1-a...sh-lights.html
The issue I had with my 65, which has factory A/C and thus a few extra bulbs, was the 4 amp rated circuit versus the cumulative amp draw of all the new bulbs.
You may wish to test your system by connecting a multi-meter in place of the 4 amp panel lamp fuse, and then turning on the lamps to see how much amperage is currently going through your circuit. Then compare the amp draw of an 1817 to the 1816 and see if your system can handle the upgrade.
