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Atari 1050 power supply

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danielito10

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Sep 25, 2011
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Drumheller, AB, Canada
Hi, I have had this Atari 800XL with a 1050 disk drive and few dozen of disks and many cartridges and many joysticks for the last 8 years (I have an extra spare 800XL console too), and I was never able to use the disk drive because its power supply is missing, and I can't find the voltage and pin output of the plug anywhere, somebody can check at your own power supply and tell me?

and why not, what command should I use to load a program from the drive? Thanks.
 
Hi, 1st I already read that FAQ, in one part is says is 9V DC, and in other part it says it 31V AC, and it never gives me the pinout, and I don't want to blow that thing. I'm sure that you can easily take a look to your power supply.

And I have many dozen different power supplies, so I can easily make one.
 
Yes, the 1050 (just like e.g. 1200XL) uses 9VAC or 10VAC depending on region. The reference to 31 you saw are VA = volt-ampere, how much power it draws. Kind of like effect in W but not entirely the same thing. Basically it is a notion that your 9VAC power supply must not be too weak in order to drive the 1050. You'll probably need something in the line of 9VAC 3A. Such transformers can be found loose on eBay but cost a bit of money. On the other hand, spare original Atari power supplies aren't cheap either.
 
carlsson said:
Yes, the 1050 (just like e.g. 1200XL) uses 9VAC or 10VAC depending on region. The reference to 31 you saw are VA = volt-ampere, how much power it draws. Kind of like effect in W but not entirely the same thing. Basically it is a notion that your 9VAC power supply must not be too weak in order to drive the 1050. You'll probably need something in the line of 9VAC 3A. Such transformers can be found loose on eBay but cost a bit of money. On the other hand, spare original Atari power supplies aren't cheap either.
Click to expand...

This. VA vary from W in that it doesn't account for power factor (how much the current leads/lags the voltage).

FWIW, the Coleco ADAM disk drive power transformer is exactly the same... but those are scarcer. :)
 
danielito10 said:
Hi, I have had this Atari 800XL with a 1050 disk drive and few dozen of disks and many cartridges and many joysticks for the last 8 years (I have an extra spare 800XL console too), and I was never able to use the disk drive because its power supply is missing, and I can't find the voltage and pin output of the plug anywhere, somebody can check at your own power supply and tell me?

and why not, what command should I use to load a program from the drive? Thanks.
Click to expand...

Try here
http://www.atarimania.com/documents-atari-400-800-xl-xe-manuals_2_8.html
you should find all the manuals you will need have a nosey round the main site
http://www.atarimania.com/atari-400-800-xl-xe.html
 
Just to remind you guys that when thinking about using a powerpack with the 1050 drive It's not just the 9v that matters. I had a BOOT ERROR and the drive (LEDs) appeared to be working correctly and I was dumbfounded. I had used 'any old 9v powerpack (with 7 Va)' but the output was seemingly too low.When I found the retail Atari powerpack I saw it was 9v 50Hz 27Va. I connected it , everything powered up and there I was playing Dropzone. Bliss...
 
is it possible to use a 9 VDC adapter on these 1050s? i dont have a 9 VAC, and the reason i think it MAY be possible (but need to verify with you guys) is that the NES says it requires a 9 VAC adapter, but you can safely use 9 VDC. (and i do on my NES)
 
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