KLund1 Posted April 6, 2020 Share Posted April 6, 2020 Hello again, I was looking a bit more closely at the two 1064 units I have. One I think is serial number 47, and the other is 267. They have several differences. The 267 has a bodge wire and a big resistor added to the top of the board. The 47 case uses only 3 screws and a plastic post while the 267 has four screws. Seems odd that they made such large changes in between such low numbered units. The font size and type is different for the larger printed numbers on the back labels. Perhaps they only did small manufacturing runs of 100? I did not see any other changes. But I also noticed both are Rev C boards. Are there any A, B board out there? But I though I should at least document those differences here for all to see, and ponder. 1 Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted April 6, 2020 Share Posted April 6, 2020 It's not a resistor, it's a capacitor or coil/choke... I really can't see it better than that on my phone.... the trace was cut on either side and the cap may have been moved.... could have been to improve pass through / current / mitigate some noise.... but it also could have been busy work.... Quote Link to comment Share on other sites More sharing options...
+kheller2 Posted April 6, 2020 Share Posted April 6, 2020 SN Owner Location Number Year Week Date End Date Week Label Plastic Image 83AKC 00047 513 AA HONG KONG 00047 1983 51 19-Dec-83 25-Dec-83 51 0004 NO FCC None 83AKC 01330 134 HONG KONG 01330 1984 13 26-Mar-84 01-Apr-84 13 0133 NO FCC Tabs https://www.rhod.fr/pages/atari_1064.html 83AKC 02453 154 HONG KONG 02453 1984 15 09-Apr-84 15-Apr-84 15 0245 NO FCC Tabs https://www.retrogames.co.uk/031061/Atari/Atari-1064-64K-Memory-Expansion 83AKC 02773 154 HONG KONG 02773 1984 15 09-Apr-84 15-Apr-84 15 0277 NO FCC Tabs https://archiwum.allegro.pl/oferta/atari-1064-i8082186724.html 83AKC 07907 164 HONG KONG 07907 1984 16 16-Apr-84 22-Apr-84 16 0790 NO FCC Tabs http://www.vintagecomputershop.com/epages/79711951.sf/en_GB/?ObjectPath=/Shops/79711951/Products/3 83AKC 00267 204 AA HONG KONG 00267 1984 20 14-May-84 20-May-84 20 0026 FCC label Tabs Just a quick google search, you can see the serials are not sequential (so there are a lot more made than one thinks). Your late 83 model w/o the locking tabs seems pretty rare. And in general it looks like FCC number was late being applied to the sticker... not until May Quote Link to comment Share on other sites More sharing options...
+MrFish Posted April 6, 2020 Share Posted April 6, 2020 (edited) The prototype had a brown case -- like the CX80 Trakball. Atari Museum: 1064 Edited April 6, 2020 by MrFish 3 Quote Link to comment Share on other sites More sharing options...
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