from my previous post #20
Then as I have edited it below.
Lincweld
code 7168 is a 1972 , 1972 is a year of transition with 5 different code #'s. Two distinct changes in this code #. First and most noticble is the change to the octagon barrel with aluminium shunt field coils and second is the change to the negative ground altenator.
Rhyno
I agree with your thoughts on the lower cost to manufacture for reasons that some things changed.
A few exerpts from my compiled Code # lists
Start of the "Red Face". The name plate was Red...not black, not blue tint, but Red..
The year was 1963 code # 4999
The "Red Face" ran to 1967, thru code # 6072
Year 1967 code # 6073, the color of the face plate changed back to "Black", same plate just black not red.
This is when the F163 was introduced and the two piece end panel chaned to the singlepiece, dish stamped end panel.
1972 code 7078 was the last year and code # for the round barrel 12V neg ground generator machines
The next code in the run.... 7168
My edited version
" The caviat;
I try to verify this information by cross referencing it from different sources/references. If I cant I will go by what I can. So there may be a gap or an omission. If you have information that is different please share it so we can all get it right. "
So as not to hijack this post, I am posting this info in SA 200 Face plate registry
http://weldingweb.com/showthread.php?t=209831 as well.
Lincweld
code 7168 is a 1972 , 1972 is a year of transition with 5 different code #'s. Two distinct changes in this code #. First and most noticble is the change to the octagon barrel with aluminium shunt field coils and second is the change to the negative ground altenator.
A few exerpts from my compiled Code # lists
Start of the "Red Face". The name plate was Red...not black, not blue tint, but Red..also the top corners of the plate were square.
The year was 1963 code # 4999.
The square top "Red Face" ran to 1967, thru code # 6072
1967 code #6073 starts the Round top Red Face. this was the last code # in 67.
This is when the F163 was introduced and the two piece end panel chaned to the singlepiece, dish stamped end panel.
Year 1969 code # 6791, the color of the face plate changed back to "Black", same plate just black not red.
* Note; I have some information that "suggests" that along with the black plate the red plate was still being used thru 72 but I have no photgraphic proof.
1972 code 7078 was the last year and code # for the round barrel generator machines
The next code in the run.... 7168 , Hex barrel Gen. housing
1973 code 7242 was the last code # for the round top corner Black face machines.
1973 Code 7243 started whats known as the "Green Light" machines