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skintigh

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About skintigh

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  1. Another spotted on ebay: A1 8B 1929476 I assume it's 3-chip, can't tell. I figure if nothing else, collecting these numbers will let me figure out how many units they made in the final months. Right now it looks like in 9/89 they made >28000, but in the lower 20ks in Nov + Dec. Then maybe 15k by 3/99 falling to 11k by the end of the year and Jan 1990.
  2. Not a useful data point, but mildly interesting: apparently some boxes have the serial number on them. Only 1 out of 3 of this type of box I've seen on ebay.
  3. Another data point: A1 81 1499521 (blue) seen on ebay by me.
  4. A1 89 1884673 - 3-chip, Rev ?, Seen on eBay by skintigh A1 89 1894480 - 3-chip, Rev ?, Seen on eBay by skintigh [looks 3-chip] A1 89 1894481 - 3-chip, Rev F, toymailman [I assume Rev F = 3-chip] A1 89 1912894 - 3-chip, Rev ?, Seen on eBay by skintigh (color is super faded) A1 8B 1929296 - 3-chip, Rev ?, Seen on eBay by skintigh A1 8B 1945963 - ?-chip, Rev ?, Seen on eBay by skintigh (no pics) A1 8C 1975714 - ?-chip, Rev ?, Seen on eBay by ApolloBoy A1 ?? 1979508 - 3-chip, Rev ?, Seen on eBay by skintigh A1 93 1985935 - ?-chip, Rev ?, Seen on eBay by ApolloBoy A1 97 2025558 - 3-chip, Rev ?, Seen on eBay by skintigh -- -- ------- A1 98 2041661 - ?-chip, Rev ?, Mirage1972 "possibly 1-chip" ?? ?? ??????? - 1-chip, Rev 3, LittleJoe (trying to contact him for #) A1 98 2042053 - 1-chip, Rev ?, from TK reported second hand by skintigh A1 98 2045143 - 1-chip, Rev 4, Longhorn Engineer A1 9B 2057527 - 1-chip, Rev ?, Benzman66 A1 01 2071066 - ? chip, Rev ? Ravenprose A1 97 2025558 Seems to be confirmed a 3-chip 🤕 😪
  5. Thank you! So that looks like a PAL unit -- FCC ID EBA2T82600 I have several more serial numbers I wanted to add to my data, but I can't edit my post?!?! That's going to make it hard to update the list. Anyway, now I'm looking for "A1 8C ..." or later A1 89 1884673 - 3-chip, Rev ?, Seen on eBay by skintigh A1 89 1894480 - 3-chip, Rev ?, Seen on eBay by skintigh [looks 3-chip] A1 89 1894481 - 3-chip, Rev F, toymailman [I assume Rev F = 3-chip] A1 89 1912894 - 3-chip, Rev ?, Seen on eBay by skintigh (color is super faded) A1 8B 1929296 - 3-chip, Rev ?, Seen on eBay by skintigh A1 8B 1945963 - ?-chip, Rev ?, Seen on eBay by skintigh (no pics, seller xb might find more info but so special) A1 8C 1975714 - ?-chip, Rev ?, Seen on eBay by ApolloBoy A1 ?? 1979508 - 3-chip, Rev ?, Seen on eBay by skintigh A1 93 1985935 - ?-chip, Rev ?, Seen on eBay by ApolloBoy A1 ?? 2025558 - 3-chip, Rev ?, Seen on eBay by skintigh, (trying to double check it's 3 chip and get the board rev) -- -- ------- A1 98 2041661 - ?-chip, Rev ?, Mirage1972 "possibly 1-chip" ?? ?? ??????? - 1-chip, Rev 3, LittleJoe (trying to contact him for #) A1 98 2042053 - 1-chip, Rev ?, from TK reported second hand by skintigh A1 98 2045143 - 1-chip, Rev 4, Longhorn Engineer A1 9B 2057527 - 1-chip, Rev ?, Benzman66 A1 01 2071066 - ? chip, Rev ? Ravenprose
  6. Please Help Please help me determine the number of 1-chip/JAN/Janice/Unicorns made! I am looking for the following: The serial number and color (example: "A1 98 2041661" pictures preferred) of a 1-chip Atari 2600 Jr. You can determine if it's a 1-chip by looking through the vents: https://imgur.com/gallery/QH9RZM3 BUT I would very much like the Board Rev letter/number (requires opening the Jr., 4 or 5 screws) Pictures preferred! The serial number and color of any Atari 2600 Jr. with a serial number "A1 8A nnnnnnn" or higher. The characters after A1 will be: 8A, 8B, 8C, 91, 92...99, 9A..9C, 01... The last 7 digits will be 1894482 or higher I will narrow this range as I confirm 1-chip/3-chip The data: A1 89 1884673 - 3-chip, Rev ?, Seen on eBay by skintigh A1 89 1894480 - 3-chip, Rev ?, Seen on eBay by skintigh [looks 3-chip] A1 89 1894481 - 3-chip, Rev F, toymailman [I assume Rev F = 3-chip] A1 8B 1945963 - ?-chip, Rev ?, Seen on eBay by skintigh (still trying to determine details, seller is special...) A1 8C 1975714 - ?-chip, Rev ?, Seen on eBay by ApolloBoy A1 93 1985935 - ?-chip, Rev ?, Seen on eBay by ApolloBoy A1 ?? 2025558 - 3-chip, Rev ?, Seen on eBay by skintigh, (trying to double check it's 3 chip and get the board rev) -- -- ------- A1 98 2041661 - 1-chip, Rev ?, Mirage1972 "possibly 1-chip" ?? ?? ??????? - 1-chip, Rev 3, LittleJoe (trying to contact him for #) A1 98 2042053 - 1-chip, Rev ?, from TK reported second hand by skintigh A1 98 2045143 - 1-chip, Rev 4, Longhorn Engineer A1 9B 2057527 - 1-chip, Rev ?, Benzman66 A1 01 2071066 - ? chip, Rev ? Ravenprose Implied Totals 2.071M Jr.s made 30k 1-chips made assuming Ravenprose owns a 1-chip -- 1.45% 16k 1-chips made if not -- 0.77% Assumptions for all units listed: Long rainbow models Serial number format appears to be: "A1" YM NNNNNNN Made in Taiwan in the year 198Y month M (1-9,A,B,C for Jan-Dec), possibly also 199Y month M Color of YM doesn't seem to matter but I'd like to verify NNNNNNN is the raw number of units made at that factory (I have no actual evidence of this) 1-chip serial numbers will be contiguous (please!) FCC ID EBA72R2600 NTSC (PAL units seem to have a different FCC ID, and maybe always start with X?) I pulled some of this data from a 2010 thread and by contacting owners directly. Thank you everyone for your help!
  7. Oh noooooooooooo!!!!!!!!!!!!!!!!!!! 😪 This looks like a 3-chip, right? I was hoping 1-chips started around unit #1,900,000 and they made 170,000+. This one I just found suggests they don't start until after 2,025,558 and there were around 45,508 made (if we assume @Ravenprose owns a 1-chip and it was one of the last ones made) Otherwise, we have only confirmed they made 2057527 - 2042053 or 15,474 1-chip units!! That's about 0.75% of total production of Jr.s if the serial numbers can be trusted.
  8. If not I may start a new one
  9. A1891884673 - Seen on eBay by skintigh, Taiwan, 3-chip A1891894480 - Seen on eBay by skintigh, ebay, looks like 3-chip <<---------------------------------------------- A1891894481 - toymailman (Taiwan, manufactured September 1988, Rev. F board) 3-chip I assume? A18B1945963 - Seen on eBay by skintigh, still trying to determine revision... A18C1975714 - Seen on eBay by ApolloBoy (Taiwan, manufactured December 1988) A1931985935 - Seen on eBay by ApolloBoy (Taiwan, manufactured March 1989) ????????????? - LittleJoe, 1-chip, Rev 3 board A1982041661 - Mirage1972 (Taiwan, possible 1-chip, manufactured August 1989) A1982042053 - me 2nd hand from TK 1-chip A1982045143 - Longhorn Engineer (Taiwan, 1-chip, manufactured August 1989) Rev 4 board A19B2057527 - Benzman66 (Taiwan, 1-chip, manufactured November 1989) A1012071066 - Ravenprose (Taiwan, manufactured January 1990) Found another seeming 3-chip. A1891894480 Bizarrely, it's the serial number 1 before @toymailmans unit!!!!!!!!!!!!! Added notes on Rev 3 and Rev 4 1-chip boards.
  10. @toymailman Rev F == 3-chip? @ApolloBoy I have another number to add and I can verify from ebay photos that A1891884673 is 3 chip. Also, the 89 is blue. Working on getting info for A18B1945963
  11. I assume someone figured this out but it wasn't listed. It seems the format for Long Rainbow NTSC serial numbers is A1 y m NNNNNNN For example: A1 8=1998 C=12=December 1975714=1,975,714th unit made (at that factory)? For older models, I believe it is AT yy mm XXXXX The yy seems obvious, and the mm is always in the range 00-11. But that could be coincidence, as the XXXXX seems random. Maybe, like the score in Asteroids, it flips after 100,000? I can also report (second hand) another 1-chip unit: A1982042053 I hunt for more unicorns...
  12. Thanks for all the info! That picture of the FB3 is exactly what I'm hoping for -- those chips are perfect for extracting data. I fear the glob-top... It doesn't make it impossible, it just makes it more annoying than I want to deal with for now. I'm surprised nobody has done a tear down or review of the FB4 showing the chips.
  13. Which is great as I have experience reversing Arm and Thumb. Sadly none of those site say which Arm chip it was, nor include a picture showing which, if any, external ROM is on board and what kind of anti-tamper work they've done.
  14. I am considering buying a flashback 4 and seeing what I can do to it. I decided to research it online first and I can't find a single picture of it's mainboard or description of the chips it uses. Does anyone have that information or pictures? My goal would be to use a chip reader to extract information from the ROM and the reverse engineer the program in Ida Pro to see what I can work with. But that requires there to be a ROM/PROM, and preferably for it to be accessible (some boards cover them in black sludge). Thanks.
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