Re: [T3] FW: Headlight switch

[Chris Wright <Christopher.Wright@Sun.COM>]

<x-flowed>Both the original 6v round one fitted to my 64 T34 and the rectangular 
spare (which has 311 941 531B moulded in the cast metal back) have a max 
resistance of approx 33 ohms measured between 30 and 58b.   This doesn't 
equate to your 6v resistance!   Maybe my DVM is in need of replacement!
I was wrong about the A and B suffixes.   As far as I can see, 
disregarding the prefix numbers, the A suffix was up to 1957 for T1 and 
T14, the B suffix was originally the same round shape and was changed to 
a rectangular one in late 64 (65 model year?) and went up to 67,  I 
can't see any references to C or D suffixes, the 12v version from 67 on 
seems to have had an E suffix  and I've seen a reference to an F suffix 
which from what you've said, was 71 on?
Anyone got any more accurate info than this?
Chris

Jim Adney wrote:

> On 3 Apr 2006 at 16:17, Chris Wright wrote:
>
>  
>
> > No, but the 12v ones are part number 311-941 531B and valid from VIN 348
> > 000 001 which is 68 medel year I think.  On my spare 12v one, it has the
> > number moulded in the brown bakalite piece if I remember correctly.  The
> > 6 v ones were suffix A. I might be able to check it tonight.
> >    
>
> All the 12 V ones I find here are marked 113 941 531. My parts lists 
> show an E version, while earlier switches are 311 parts, I think. It 
> looks like there was a lot of supercession going on here.  
>
> I can't read this part of the microfilm very well.  
>
> The rheostats measure ~20 Ohms on the 6V unit and ~45 Ohms on the 
> 12Vs.  
>
>  

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