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I want to use an old but working Astec AA20910 / IBM 37L0059 power supply as a DC power source for my RC battery charger that needs 12-18 VDC @ 20 - 25 Amps.

Power supply from IBM EXP200 disk array. Want to use it to power a battery charger. The edge connector has markings for 12v, 5v, COM, COM1, COM2. there is one part of the tab that's separated by a cutout and has three small contact strips which are unmarked. The unit powers on, but no voltage is present on the edge connector when tested with volt meter. Which leads need to be connected to send voltage? Thanks

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  • Stuart
    Stuart Feb 09, 2012

    Without seeing photos it's a bit difficult to say.

  • mike Feb 09, 2012

    I would add a pic of the power supply, but I don't see a way to do that. I also can't see how to change the category from Motherboards to power supply. i think Motherboards was chosen by the site based on my comments regarding COM which in this context I think actually refers to "common".

  • Stuart
    Stuart Feb 09, 2012

    Hi. There is an option to add a picture, at the bottom right of the text box there is a little camera icon, click it and it asks for a picture.Or you could send one to this email address.stuart (dot) bassett2 (at) virgin (dot) net

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Posted on Mar 03, 2009

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2 3.3V Orange +3.3 VDC
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http://www.playtool.com/pages/psuconnectors/connectors.html#oldpc

I just put Astec SA147-3506 in my browser search bar, and came up with a number of search hits. Prices ranged from $50 to $170!

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Readers, please rate your technicians information.

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