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#1 |
Active Member
Join Date: Dec 2000
Location: Bosque Farms, NM, USA
Posts: 184
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Cargo Light Bulb?
The cargo light bulb burned out in my '72. When I changed it out, the thing twisted off and I damaged the old bulb. No big deal except taht i cannot identify the bulb. What's strange is the bulb has two contacts on the base and a single element. The socket also has two contacts. Does anyone know why this is? This is a factory cargo light.
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'67 C-10 short stepside '72 K-10 Cheyenne Super under construction |
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#2 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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yup thats the stock gOOfy bulb.....
i got one with the new cargo light i ordered....looked at the parts store they did not have it ![]() i changed it right away before i install it....got one laying here... i guess i could go look for the number ![]() Last edited by rage'nrat638; 12-11-2003 at 10:38 PM. |
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#3 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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12V32CP DON'T ASK ME
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#4 |
Active Member
Join Date: Dec 2000
Location: Bosque Farms, NM, USA
Posts: 184
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I'd appreciate it greatly! Why does it have two contacts and one filament?
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'67 C-10 short stepside '72 K-10 Cheyenne Super under construction |
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#5 |
member #16
![]() Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
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The reason for two contacts is they use the orange and white wires from the dome light circuit,and the orange one is hot all the time and the white completes the ground. Other wise you would feed back into your dome light.
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john http://67-72chevytrucks.com/vboard/showgroups.php board vendors ![]() http://www.flickr.com/photos/1745471...7602865984234/ |
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#6 |
Active Member
Join Date: Dec 2000
Location: Bosque Farms, NM, USA
Posts: 184
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That makes sense. Thanks for the info. Merry Christmas from New Mexico!
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'67 C-10 short stepside '72 K-10 Cheyenne Super under construction |
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#7 |
Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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#1142
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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#8 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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all light bulbs have 2contacts
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#9 |
Registered User
Join Date: Dec 2003
Location: Fairbanks Alaska
Posts: 222
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I put a 1004 in mine.Two contacts one element
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2006 Dodge Quad Cab 4X4 2001 Chevy Impala 2006 Corvette 2009 Fusion 1964 Toyota Landcruiser FJ45 Wagon |
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#10 | |
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Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Quote:
Last edited by Gene; 12-11-2003 at 10:07 PM. |
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#11 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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HAH a lightbulb with 1contact !! how is the electrical circuit completed??? there MUST!!!! be a positve and a negative contact for illumination !!!!!!!!!!!! there's no such thing as a light bulb with 1contact go back to basic electricity class !!!!!!!!!!!
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#12 |
Senior Member
Join Date: Jan 2000
Location: Cincinnati, Ohio
Posts: 1,492
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Isn't the outer case the other contact/ground? I think he meant there is only one hot contact.
Anyone make a brighter light for a cargo light? Like a halogen or something?? |
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#13 |
CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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The reason it has two contacts on the base and one filiment, is it does not use the brass base for a ground as most bulbs do
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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#14 | |
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Join Date: Aug 2002
Location: Muskogee, Oklahoma
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Quote:
![]() Last edited by Gene; 12-11-2003 at 09:06 PM. |
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#15 |
Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Check your backup bulb in your truck--1156--1 contact--grounds thru brass. ( last class was in 1954 at UT-go Vols)
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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#16 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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duh a ground is a contact
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#17 |
Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Right but only one contact on bottom unlike a 1142 which has two on bottom which does not ground thru case. (electricity 101)
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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#18 |
Registered User
Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Duh? My 9 year old argues like that
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#19 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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yes true some light bulbs have more than 2contacts like the mentioned dual filament 1142 that has 2contacts for the filaments and a3rd contact where it grounds thru the case
what's getting confused by those unfamilar with electricity is that i stated A LIGHT BULB MUST HAVE 2CONTACTS and yes it can have more like the 1142 with three or the flouresents or headlights but a light dont work with 1contact NEVER
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#20 |
Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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1142 has one filament and 2 contacts on bottom. Does not ground thru case. It works like John says. We all know that you have to have a complete circuit to ground. I have wired many street rods and machines from scratch including fuse panel. Was not trying to put you down-just having a little fun.
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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#21 |
Registered User
Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Yeah, Not trying to make you look bad cdowns, I just pointed out something that I saw that seemed incorrect. We're basically saying the same thing but wording it different. BTW I am very familiar with basic electrical properties. I wired my shop and my 71 Chevy and have done many electrical repairs to my home. Even have to wire in proximity switches, photo eyes and numatic solenoids from time to time in my line of work.
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