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Ask DocSk8 (Expert Indoor Skate Building Advice) This forum is different then the other SkateLog forums in that it is not a discussion forum, but rather a place you can ask skate building expert Fred "DocSk8" Benjamin about building and repairing indoor speed, derby, and jamskate quad roller skates. Please start a new thread for each new question.

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Old October 13th, 2010, 08:45 PM   #21
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"PM" is from 1987 and "EH" is 1994. Those were the only two I checked on so far.
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Old October 15th, 2010, 07:02 PM   #22
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could you check RM?
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Old October 16th, 2010, 08:00 PM   #23
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could you check RM?
1987 or 1998?

If the letters represent weeks of production then:

PM = sometime in weeks 1-31 of 1987
EH = sometime in weeks 22-52 of 1994

if so then

RM = weeks 38-52 of 1987 or 1-16 of 1988
CH = weeks 7-37 of 1980
GN = weeks 13-43 of 1982

A twist on this could be that AA was Jan 1979 and the week count is stopped when the plant closes for vacation. I think PM and EH would work in this pattern if the plant closes for 2 weeks a year.

This sort of pattern gives 13 years per cycle so the above guesses could be off by multiples 13 years either way. Usually this window is large enough for a knowledgeable person to pinpoint a production week due to variations over a 13 year time frame.

I'm sure third graders are better at this sort of stuff than me.
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Old October 21st, 2010, 09:04 PM   #24
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Quote:
Originally Posted by wired View Post
1987 or 1998?

If the letters represent weeks of production then:

PM = sometime in weeks 1-31 of 1987
EH = sometime in weeks 22-52 of 1994

if so then

RM = weeks 38-52 of 1987 or 1-16 of 1988
CH = weeks 7-37 of 1980
GN = weeks 13-43 of 1982

A twist on this could be that AA was Jan 1979 and the week count is stopped when the plant closes for vacation. I think PM and EH would work in this pattern if the plant closes for 2 weeks a year.

This sort of pattern gives 13 years per cycle so the above guesses could be off by multiples 13 years either way. Usually this window is large enough for a knowledgeable person to pinpoint a production week due to variations over a 13 year time frame.

I'm sure third graders are better at this sort of stuff than me.
wow im lost on this one..... second letter is what and first letter is what????
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Old October 22nd, 2010, 02:01 AM   #25
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wow im lost on this one..... second letter is what and first letter is what????
It's base 26, both letters together. Not the first letter = something, second letter = something else.

aa=1
ab=2
ac=3

and so on until

zx=674
zy=675
zz=676

This may not be how those two letters work but in the two cases above PM=1987 and EH=1994 they appear to fit. If anyone has more confirmed LETTERS=DATE I can fiddle with it and see if it continues to work and/or refine the scheme. The reason I have week ranges in the previous posting is that those are the range of possibilities for the limited data set I was working with. My feeling is each letter pair represents a week of production, not a range of weeks.

So things I would like to know:

Does Riedell stop production on a regular schedule?
When did the two letter scheme start?
Are the dates for RM, CH & GN in my previous posting correct? If not what dates do they represent?
More confirmed matches like PM=1987, EH=1994.

Could be handy. For someone. Possibly 3rd graders...
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Old October 28th, 2010, 09:12 AM   #26
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Quote:
Originally Posted by wired View Post
It's base 26, both letters together. Not the first letter = something, second letter = something else.

aa=1
ab=2
ac=3

and so on until

zx=674
zy=675
zz=676
One problem with your explanation of the system (or how you're laying it out). Base 10 only includes 9 numbers (plus zero). Hexadecimal (base 16) goes from 0-9 then has a-f for 10-15. There's no value for 16, because that would be represented as 10.

Long story short, does a in this system equal 0 or does it equal 1? This system COULD be base 27, but what's the zero value then? Or is Z the zero?
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Old October 28th, 2010, 01:00 PM   #27
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these are the "rm" code....i assume 1987
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Old October 28th, 2010, 03:55 PM   #28
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these are the "rm" code....i assume 1987
Incorrect. What those are, is "awesome".
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