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1200XL Owners Club (serial tracker)


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#426 towmater OFFLINE  

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Posted Mon Aug 14, 2017 10:37 AM

The last 3 digits must be 143(14th week of 83), since Atari discontinued 1200XL production in June(week 29) that year.

 

You are absolutely right, the ink had faded. Unfortunately the "edit" link has expired.


Edited by towmater, Mon Aug 14, 2017 10:38 AM.


#427 kheller2 OFFLINE  

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Posted Tue Aug 15, 2017 10:07 AM

List updated.



#428 toddtmw OFFLINE  

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Posted Thu Aug 17, 2017 7:12 AM

The first (non-prototype) item on this list seems out of place given the serial number.

83S DA 019879 033 Larry USA 019879 1983 03 17-Jan-83 23-Jan-83
83S DA 010409 063 Guitarman USA 010409 1983 06 07-Feb-83 13-Feb-83

That 019879 looks like it would fit better in week 7.

#429 kheller2 OFFLINE  

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Posted Thu Aug 17, 2017 12:01 PM

serial numbers are not sequential by date.



#430 toddtmw OFFLINE  

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Posted Sun Aug 20, 2017 9:41 AM

serial numbers are not sequential by date.


Weird. What is the point of have sequential serial numbers if they don't do them by date? Do the ones that don't pass QC sit in a queue to be fixed and then get the date stamp when they are repaired? (But if that was the case, the date stamp would be even later...)

I cannot come up with a reason why the serial numbers would be out of synch the way this one appears to be.

Anyone?

#431 kheller2 OFFLINE  

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Posted Sun Aug 20, 2017 6:10 PM

Weird. What is the point of have sequential serial numbers if they don't do them by date? Do the ones that don't pass QC sit in a queue to be fixed and then get the date stamp when they are repaired? (But if that was the case, the date stamp would be even later...)

I cannot come up with a reason why the serial numbers would be out of synch the way this one appears to be.

Anyone?

 

 

While we don't have an official reason for this, it is prevelent among many manufacturers of that era.  Take a look at the 5200 serial numbers, different plants, some with six digits some with seven.  With the 1200XL there were two plants making them, and its very likely that there are multiple assembly lines per plant and each had their own labels and inked serial number ranges.  Just consider this scenario (completely made up of course):  You have four assembly lines, the only way to manually keep track of where a serial number is is by assigning each line a range of numbers for a particular shift/week/run.  So, say 1000-1999 for line 1, 2000-2999 for line 2 etc..   Eventually line one will complete and need 5000-5999 before the other lines complete.  Say some broke down, or needed to halt the line to work on something, while the others kept going.

 

The part I always wondered about was why there were differences in the number of digits from the same plant. :)

 

83S DA 005333 123 neopeius USA 005333 1983 12 21-Mar-83 27-Mar-83

83S DA 48017 123 rockdoc2010 USA 48017 1983 12 21-Mar-83 27-Mar-83
 
Same week. 5 vs 6 digits.
 
Also, I'm not exactly sure the serials were stamped when the stickers were applied.  The date stamp certainly was but the serial numbers almost look like Atari ordered up a bunch of spools from a printer.  Sometimes they got various versions.


#432 ACML OFFLINE  

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Posted Tue Aug 29, 2017 7:51 PM

I'm back to three again.  Adding 83S DA 008463 153.  Got this one off eBay for $163 and its in awesome cosmetic condition.  Couldn't pass it up.  Looks like someone tried it, put it back in the box and there it sat for 34 years.


Edited by ACML, Tue Aug 29, 2017 7:53 PM.


#433 DrVenkman OFFLINE  

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Posted Sat Sep 2, 2017 2:36 PM

Added another one to the fold. :) Needs the Bob Wooley's keyboard Mylar repair of course, and I've already sourced a solution for the missing ESC key so that's taken care of. I'll also do the +5V mod for the SIO port and likely put one of Bryan's UAV's into it as well. 

 

1200XL_No3_2.jpg

 

1200XL_No3_3.jpg

 

1200XL_No3.jpg

 

 

 



#434 electronizer OFFLINE  

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Posted Wed Sep 6, 2017 10:51 AM

In sorting through some of the stuff I bought earlier this year, I found a box of 1200XL plastics. Some of the case bottoms have labels on them that look like this:

IMG_3172.JPG

It says "Pilot unit 10/28" and "DA000234." Definitely not a production case, there is no raised lettering by the ports. Unfortunately, I don't have any motherboards to go with them. I think there are two other case bottoms with different serial numbers, one is covered up by a B&C sticker.

#435 DrVenkman OFFLINE  

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Posted Wed Sep 6, 2017 3:58 PM

It says "Pilot unit 10/28" and "DA000234." Definitely not a production case, there is no raised lettering by the ports. Unfortunately, I don't have any motherboards to go with them. I think there are two other case bottoms with different serial numbers, one is covered up by a B&C sticker.

 

Very cool. And it matches up with the general understanding that production of the 1200XL was from late 1982 (November or perhaps December) through late June 1983. 



#436 Brentarian OFFLINE  

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Posted Sat Sep 16, 2017 5:26 PM

Here is my latest addition:20170916_161629.jpg

#437 DrVenkman OFFLINE  

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Posted Sat Sep 16, 2017 5:34 PM

Here is my latest addition:attachicon.gif20170916_161629.jpg

 

Holy crap, that's a low S/N!



#438 Deteacher OFFLINE  

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Posted Tue Sep 26, 2017 4:30 PM

Here's mine:  83S DA 15947 with no date stamp after it:

 

 

 

Attached Thumbnails

  • IMG_4101.JPG


#439 ACML OFFLINE  

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Posted Wed Sep 27, 2017 2:12 PM

I'm on a roll.  Adding my forth and fifth 1200XL to the list.

 

72 R DA 00603 153

 

72 R DA 07520 183

 

I now have five 1200XLs and I think I'll be pushing back from the table.  Five is enough for me.



#440 kheller2 OFFLINE  

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Posted Tue Oct 3, 2017 11:02 AM

List Updated.  I just can't post the entire data set because AA keeps timing out on the post.  I will try later, or find another way to get the data online.

Also, going forward, if anyone opens up their 1200XL can you please also provide the date stamp on the white sticker, typically found by the keyboard connection.



#441 kheller2 OFFLINE  

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Posted Thu Oct 5, 2017 12:52 PM

Pilot Unit DA000231 Obtained.  Its filthy.  And this is after a quick rub down with Clorox wipes.  There are bugs living in it... it will be a nice restoration project.

 

Plastic is all smooth, and no lettering on the ports.  Plastic is heavily scraped and cut in the upper right corner.  The silver metal is heavily stained and scratched, the pictures make it look better than it really is.  I have no idea if it works.  I will completely tear it down and clean it before even attempting to power it on.

 

The green "10 13" sticker just fell out of the unit, I'm assuming it was stuck to the exposed EPROM.

 

IMG_3650.jpg

 

IMG_3648.jpg

 

IMG_3652.jpg

 

IMG_3653.jpg

 

IMG_3654.jpg

 

Nothing magical about the OS PROMS, they are stock version 10.

 

MD5 (1200XL10U12.BIN) = e19eb62ef554df174766c71c029021dd

MD5 (1200XL10U13.BIN) = 8b47c75e3e07b2f499c713fd57a2eede
Combined: e3e8c74bfe1dcd6b56af50bd9a82dc15


#442 kheller2 OFFLINE  

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Posted Tue Oct 10, 2017 11:19 AM

First post updated with observations and new calculated total units made.

Its pretty sad when one start scrounging old posts and google to find 1200XL serial numbers.

 

I do find it interesting that the 400 and 800 were still being produced for such a long time into 1983 (week 24?).  Most history texts online state production of those units stopped in 82, and even say the 1200XL was "released" in 1982 -- it wasn't out into 83.



#443 ACML OFFLINE  

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Posted Wed Nov 22, 2017 6:57 PM

I'm now at six.  Adding 83S DA 011525 113.  I may need an intervention.  

 

 

And that's the only thing I need is *this*. I don't need this or this. Just this ashtray... And this paddle game. - The ashtray and the paddle game and that's all I need... And this remote control. - The ashtray, the paddle game, and the remote control, and that's all I need... And these matches. - The ashtray, and these matches, and the remote control, and the paddle ball... And a sixth Atari 1200XL. - The ashtray, this paddle game, and the remote control, and a sixth 1200XL, and that's all *I* need.


#444 toddtmw OFFLINE  

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Posted Wed Nov 22, 2017 7:49 PM

 

I'm now at six.  Adding 83S DA 011525 113.  I may need an intervention.  

 

 

And that's the only thing I need is *this*. I don't need this or this. Just this ashtray... And this paddle game. - The ashtray and the paddle game and that's all I need... And this remote control. - The ashtray, the paddle game, and the remote control, and that's all I need... And these matches. - The ashtray, and these matches, and the remote control, and the paddle ball... And a sixth Atari 1200XL. - The ashtray, this paddle game, and the remote control, and a sixth 1200XL, and that's all *I* need.

 

 

I'm picking out a 1200XL for you not an ordinary 1200XL for you. Bet an extra great 1200XL, with plastic and stripes and a best-mylar-built-right-in!






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