|
|
Joined: Nov 2007
Posts: 476
Backyard Mechanic
|
OP
Backyard Mechanic
Joined: Nov 2007
Posts: 476 |
On the pre-1940 Chevrolet headlamps, a dual contact bulb was used, typically with one element having 32 candle power for the bright lights, and 21 candle power for the dim lights.
I see there are dual contact headlamp bulbs having two 32 cp elements. What is the purpose of having two elements of the same candle power rating?
Mark Yeamans
VCCA #35724
|
|
|
|
|
Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
|
|
Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
The output is the same but the aiming is different. High beam throws the light higher, further down the road.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
|
|
|
|
|
Joined: Apr 2002
Posts: 3,008 Likes: 1
ChatMaster - 3,000
|
|
ChatMaster - 3,000
Joined: Apr 2002
Posts: 3,008 Likes: 1 |
I used 50-50 CP bulbs in our 31. They are hard to find. I found a full box of them in an antique store in a small town.
See you Touring the Back Roads
Joined VCCA June 1, 1961
|
|
|
|
|
Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
|
|
Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
What's the part number? I didn't know they were even made. I'll do some searching. I got a whole box of the 32/32s from my FLAPS so I have what will probably be a lifetime supply but I'd like to try a pair of 50/50s to see the difference.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
|
|
|
|
|
Joined: Nov 2007
Posts: 476
Backyard Mechanic
|
|
OP
Backyard Mechanic
Joined: Nov 2007
Posts: 476 |
Tiny,
Thanks for the reply. I got the headlights on my 37 pickup re-wired and installed the 32/32 bulbs and road-tested it tonight, and I can see the difference.
Mark
|
|
|
|
|
Joined: Nov 2001
Posts: 19,758 Likes: 63
ChatMaster - 15,000
|
|
ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 63 |
I have a lamp bulb chart that lists a bulb number 1188 as a 50cp/32cp dual filament. Don't have a listing for the base type so can't guarantee they will fit but might be worth a try.
How Sweet the roar of a Chevy four!
|
|
|
|
|
Joined: Mar 2008
Posts: 287
Backyard Mechanic
|
|
Backyard Mechanic
Joined: Mar 2008
Posts: 287 |
1936 Low Cab Pickup
|
|
|
|
|
Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
|
|
Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
Wrong base Chip. The PN for the 32/32 is 2330 I believe.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
|
|
|
|
|
Joined: Nov 2001
Posts: 19,758 Likes: 63
ChatMaster - 15,000
|
|
ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 63 |
I use 1000 for the 32/32 bulbs in my '31-2s but the later 2320, 2330 bulbs have the "prefocus" ring on the base. Original 21/21cp early 30s bulbs are 1110.
How Sweet the roar of a Chevy four!
|
|
|
|
|
Joined: Dec 2017
Posts: 133
Shade Tree Mechanic
|
|
Shade Tree Mechanic
Joined: Dec 2017
Posts: 133 |
Reviving an old thread.
I've ordered 1188s from somebody on EBay. They don't last long. And I mean maybe an hour on low beam. Voltage from the generator is fine so the problem is with the bulbs.
I know that FS has them, but I have been looking for another vendor. I just ordered a 10 pack from Candlepower, Inc. for $15.59 including shipping. I should have them in a day or two. I'll report back on how they work.
This post is guaranteed to be 100% content free!
'31 Special Sedan
|
|
|
|
|
Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
|
|
Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
Search ebay for 1188 bulbs then click on ebay motors. I see a number of NOS bulbs for sale.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
|
|
|
|
|
