Bryan #51 Posted August 19, 2011 No. I would imagine that if the Freddie chip were different, it would have had a different code name. We just can't copy one very well. Ah, I guess I don't understand why we'd even want to try when every cheap-o XE out there has one. I'm sure I have a couple laying around from late model XL's too. I don't think I'd try to convert my 1450 to SRAM because I think it would be cooler to keep it as stock as possible. I'm not really planning on using it much. 1 Quote Share this post Link to post Share on other sites
+kheller2 #52 Posted August 20, 2011 Nothing to see here!!! LOL 1450XLT? Don't you dare say you have a tong board! So is this the build your own XL thread? Where is Curt and those prototype x8 1200xl board run? Quote Share this post Link to post Share on other sites
+kheller2 #53 Posted August 20, 2011 (edited) Where? Bob Take a look at the equation PDF I posted in the ore 1450 thread to see if the logic matches up. http://www.atariage.com/forums/topic/141979-1450-parts-lists/page__view__findpost__p__1721433 And then the power supply is in this thread: http://www.atariage.com/forums/topic/106884-1400xl-internals/page__view__findpost__p__1294965 Edited August 20, 2011 by kheller2 Quote Share this post Link to post Share on other sites
+Faicuai #54 Posted August 20, 2011 ...I'll probably finish it as a 1400XL instead. Aesthetically preferable, IMO. In either case, this will be really awesome if you get it working. Absolutely. The 1450XL(D?) looks like Frankenstein having received thorough (yet thoughtful) make-up before filming. On the other hand, the 1400 fully bridges 400/800 ("JayMiner")-class and XL-class machines, while also striking a nice balance of function, form, and independence of storage (you can nicely lay one or two NUXX drives on top of its casing, making it a KILLER-looking and working 8bit combo). Conversely, I would also finish it to 1450XL-model standards, but in 1200/1400-case, and internal solid-sate storage (instead of clumsy and noisy 1050 drives or any external add-on). I would call it the 1400XLR and it could very well be the ultimate 8bit-series to have. F. Quote Share this post Link to post Share on other sites
mimo #55 Posted August 20, 2011 Stop with all the jay miner add ons, they are 400 or 800 Quote Share this post Link to post Share on other sites
flashjazzcat #56 Posted August 20, 2011 I would call it the 1400XLR and it could very well be the ultimate 8bit-series to have. The "Faicuai" 1400XLR. 1 Quote Share this post Link to post Share on other sites
+kheller2 #57 Posted August 20, 2011 (edited) Some additional 1450 notes.. http://www.digitpress.com/library/techdocs/#atari8bit Anything dated after 1/84 probably doesn't apply to the "1450" board but the TONG board instead. There is a newer Tong parts list there. I also just found a parts list comparing the "600 (X4A), 800(X1A), 1400(X1), 1450(2A)" dated 5/5/83. Its wrong of course, but for historical purposes, I'll scan it in. Now, I think it would be interesting to do a run of AMY chips... there should be enough documentation out there and the development software to program for it. Just need a chip to fab. Edited August 20, 2011 by kheller2 Quote Share this post Link to post Share on other sites
+kheller2 #58 Posted August 20, 2011 Guess we are going to need to make some SALT carts to test these boards... Quote Share this post Link to post Share on other sites
Vandal968 #59 Posted August 20, 2011 Guess we are going to need to make some SALT carts to test these boards... Need to get me some of that! Drool..... v Quote Share this post Link to post Share on other sites
+wood_jl #60 Posted August 20, 2011 Stop with all the jay miner add ons, they are 400 or 800 It's "JayMiner" add-on, not "jay miner." Quote Share this post Link to post Share on other sites
Bryan #61 Posted August 20, 2011 Stop with all the jay miner add ons, they are 400 or 800 It's "JayMiner" add-on, not "jay miner." I'm going to open a place where young children can play Atari games and call it "ChezMinor" Err...maybe not. 1 Quote Share this post Link to post Share on other sites
+kheller2 #62 Posted August 21, 2011 (edited) For those building "1450" boards, make sure to use the right power. 1450: 1400: Edited August 21, 2011 by kheller2 Quote Share this post Link to post Share on other sites
+bob1200xl #63 Posted August 21, 2011 Is the pinout for the power connector somewhere? I just got my bare board - four-layer. Very nice! Bob For those building "1450" boards, make sure to use the right power. 1450: 1400: Quote Share this post Link to post Share on other sites
Rybags #64 Posted August 21, 2011 It's in the pics there... weird, the +12V is only 30 mA. I'd have thought with the 1450, the +12V would have been sufficient to supply 2 drive mechs. Quote Share this post Link to post Share on other sites
Curt Vendel #65 Posted August 21, 2011 I pulled the 1400/1450 Tube with all of the schematics, PC board layouts and case mechanicals, I also have a BOM printout for the boards too (TONG as well) what I unfortunately don't have is the schem's for the TONG version boards, wish I did :-( I've got a few things I need to take care of for my friend Karl from the old Atari Explorer site and once I wrap that up, I'll scan in the sheets, it will make placement of parts a lot easier and the BOM I have in a folder of 1400 and 1450 files, so that's no problem. Curt Quote Share this post Link to post Share on other sites
Retro Rogue #66 Posted August 21, 2011 Where is Best selling 1450 boards and for how much? Don't see it on their site. Quote Share this post Link to post Share on other sites
mimo #67 Posted August 21, 2011 You have to ask Bradley , they are not listed. Only one left I believe and he wants $65 for it Quote Share this post Link to post Share on other sites
mimo #68 Posted August 21, 2011 strike that, they are all sold Quote Share this post Link to post Share on other sites
+kheller2 #69 Posted August 21, 2011 (edited) It's in the pics there... weird, the +12V is only 30 mA. I'd have thought with the 1450, the +12V would have been sufficient to supply 2 drive mechs. You were looking at the 1400 brick, not the 1450. Mind you, that 1400 supply is what came with the prototype I had. I have no idea if it's official. I read in one of Atari's test documents that there was a large failure rate during testing and had to be redesigned for heat issues. I'm not sure if that 1450 supply is the same brick for a TONG. Hmmm. Anyone ever see a master CO part number list and a master document list. That would be useful for a lot of things, least of which would be speculation. Edited August 21, 2011 by kheller2 Quote Share this post Link to post Share on other sites
Retro Rogue #70 Posted August 21, 2011 strike that, they are all sold Yah, I heard he jacked up the price because people started ordering a bunch of them because of this thread. It's a shame, because it's probably a bunch of people who got it that thought "Oooh, proto collectible", will sit and stare at it for a bit and then throw it up on e-bay when they decide it's just something to stare at. Taking it out of the hands (and normal price range) of people that could have actually done something with it. Quote Share this post Link to post Share on other sites
+orpheuswaking #71 Posted August 21, 2011 I'm going to open a place where young children can play Atari games and call it "ChezMinor" Err...maybe not. Made my day Quote Share this post Link to post Share on other sites
Curt Vendel #72 Posted August 21, 2011 Don't forget to check here for resources: http://www.atarimuseum.com/computers/8BITS/XL/1450xld/1450xld.html I will see about posting more materials up shortly... Curt Quote Share this post Link to post Share on other sites
+bob1200xl #73 Posted August 21, 2011 The 1450 supply that's shown has a 2amp capacity on the +12v. The 1400 does not have drives, only the modem, I imagine. I have a supply (CO62023) that has a similar pinout - +5v on 1&6, +12v on 4, -5v on 2, and 3,5,7 as ground. Like these, except a 7-pin connector. I'd like to see the computer-side pinouts, if anyone knows where they are. Bob It's in the pics there... weird, the +12V is only 30 mA. I'd have thought with the 1450, the +12V would have been sufficient to supply 2 drive mechs. Quote Share this post Link to post Share on other sites
Curt Vendel #74 Posted August 22, 2011 Okay, just posted up one of the first technical docs, here are the PAL chip decoding and equations for the 1400XL boards... http://www.atarimuseum.com/whatsnew/whatsnew.html More to follow. Curt Quote Share this post Link to post Share on other sites
+kheller2 #75 Posted August 22, 2011 (edited) Here is an interesting historical Bill Of Materials listing. This is from 5/9/83, months before the 1450 board that is in the thread was produced. It shows the 600(X4A) using Antic E instead of Antic, and the Freddie chip only in the PAL 800.. probably a typo, as the 1400 is listed as using a 7 pin female power jack. In any case, here is a nice list of CO part numbers here for cross references. Atari Old BOM sm.pdf Edited August 22, 2011 by kheller2 Quote Share this post Link to post Share on other sites
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