Compiling 2600 Jr. "Unicorn" 1-chip serial number list, please help!!

[skintigh]

On 3/18/2021 at 8:21 PM, Mitch said:

I just gave you edit rights to the first post.

 

Mitch

Thank you!!!

[skintigh]

Confirmation 96/95 2009309 is another out-of-order 1-chip.

 

Looks like 96 from afar, 95 up close. But maybe that random blue line makes it look like a 5? Mathematically, 5 makes more sense as the serial number is halfway between a 93 and 97, but that's not many data points to go by.

[skintigh]

Another out of order number: 3-chip, 8C 2005540 

 

Also, I'm now editing the first post with all new info!

[skintigh]

some more 3-chips, added 1 to the table

[skintigh]

Added some notes, links to sources, and adjusted formatting of the table.

Also saw what might be the lowest serial number yet on ebay

[skintigh]

New finding of interest: a 3-chip in between 1-chips. Starting to seem like my low # 1-chip is an outlier, perhaps a repair/refurb.

 

This finding has been modified for a composite video output, so I guess they removed the RF shield, but the board appears to have the waffle pattern so I think it's a 3-chip.

Edited April 12, 2021 by skintigh

[skintigh]

Another high serial # 3-chip, seems like my 2009309 is a fluke and there are less 1-chips than I thought  

Also, the stamped number is out of order again. I'm thinking those must be stamped at the time of shipping, and maybe the serial numbers are even put on the boxes first.

 

Edited April 26, 2021 by skintigh

[skintigh]

Found a highish number on ebay, probably the last 195xxxx I add.

[skintigh]

The potential pool of 1-chips gets slightly smaller, looks more and more likely 2009309 was a fluke/repair/RMA.

[skintigh]

[skintigh]

2 new weird entries from one ebay post. Both 3 chip, but one with an impossibly high number that must be 01 or later, but the data digits are unreadable.

 

 

[+thanatos]

9B 2038237 is mine.  Finally got around to opening it tonight to verify.

[skintigh]

On 6/10/2021 at 11:24 PM, thanatos said:

9B 2038237 is mine.  Finally got around to opening it tonight to verify.

Nice! So it's definitely a Rev 4 1-chip?

[skintigh]

91? 93? 95? 81? 2312fdb%^%3?

[+thanatos]

8 hours ago, skintigh said:

Nice! So it's definitely a Rev 4 1-chip?

Correct, it's the same one as in the photos Crazy Climber posted.

[skintigh]

Another 3-chip:

[skintigh]

On 6/15/2021 at 1:08 AM, skintigh said:

91? 93? 95? 81? 2312fdb%^%3?

Welp, the seller sent me a clearer image. Since 8s are usually symmetric or slightly larger on the bottom, I'm pretty sure the first digit is a 9, followed by 1. 

 

[skintigh]

[0078265317]

https://mvvg.blogspot.com/2019/12/2600-jr-photos.html

 

Here is mine

 

[skintigh]

Yet another out of order 8C

[skintigh]

My first 8A, 3 chip

[skintigh]

[OldPAL]

On 9/9/2021 at 8:34 PM, skintigh said:

I bought this one confirmed 1-chip

 

[frankstony16@gmail.com]

Quote

i have an 87 blue 1783654....any good?

 

[skintigh]

On 10/28/2021 at 1:31 PM, OldPAL said:

I bought this one  confirmed 1-chip

Congrats!!! If you've opened it, could you tell me the board Rev number/letter?