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Unusual but usefull power supplies...

S

Stone

10k Member
Joined
Nov 3, 2009
Messages
12,814
Location
South Jersey, USA
I have several (new, but I've had them for about 15 or 20 years) Ault power supplies to sell. They are 120VAC units that output the following DC:

+5VDC 2.0A
+12VDC 0.25A
-12VDC 0.25A

I'm not sure what they're from but I've used them to power various devices by removing the connector from the DC end of the wire and soldering the appropriate wire(s) to the DC delivery plug I wanted to use. They weigh about two or three pounds. I will test each unit before I send it to you.
 
Last edited:
You beat me to it...

You beat me to it...

I was just thinking that some pics would help.

Thanks,
Dave...
 

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The +12/-12 tells me that they were probably used as a modem PSU. I've got a couple of Racal Vadics that have similar power ratings. Nice little regulated linear units. These would also be great for powering an external floppy drive. (probably not enough for a hard drive, however)

I'd love to get my hands on one or two of these for projects.
 
I can fit three or four into a flat rate box that costs around $11.00 to ship. So the shipping will be reasonable. Or, I can send one or two.

I looked at some of the 100mb -20gig older drives I have lying around (all available, by the way) and they seem to run on .21A to .27A with most falling in the .21A to .24A range. So, most of these would be useable.
 
I'll take whatever fits into a flat-rate box. PM me with your paypal address and damages and I'll get some filthy lucre out your way.

You did say that these are NOS? The reason I ask is because you can find some of these things that have seen a long service life with the result that the caps are dried out from the heat. I don't see any easy way to get into these--they appear to be glued or fused closed (i.e. no screws).
 
Stone said:
I have several (new, but I've had them for about 15 or 20 years) Ault power supplies to sell. They are 120VAC units that output the following DC:

+5VDC 2.0A
+12VDC 0.25A
-12VDC 0.25A

I'm not sure what they're from but I've used them to power various devices by removing the connector from the DC end of the wire and soldering the appropriate wire(s) to the DC delivery plug I wanted to use. They weigh about two or three pounds. I will test each unit before I send it to you.
Click to expand...

@Chuck,
Many a times have I cut into a box that was glued shut. If you don't mind regluing it or taping it back they are still serviceable.

Those look really nifty, I like the way the cables are oriented.
 
NathanAllan said:
@Chuck,
Many a times have I cut into a box that was glued shut. If you don't mind regluing it or taping it back they are still serviceable.

Those look really nifty, I like the way the cables are oriented.
Click to expand...

Well, to get into the occasional testy wall wart, I've resorted to banging along the seam with a rawhide hammer. More often then not, the thing will eventually yield and come apart nicely. In extreme cases, I've used a jeweler's frame saw to cut along the seam. A little methylene chloride fuses it back together again. I know of people who simply drop the 'wart on a concrete floor again and again until it falls apart.
 
Hi
I use a hammer and chissel.
The supply I'm using right now has been repaired in just
such a manor. I like this over sawing because it is easier
to glue back together if no material is lost.
Most laptop supplies fail in the wire that leaves the supply.
I usually do a little probing with a needle until I find the break,
usually right at the supply. I shorten the wire a little and
I'm back in business.
Dwight
 
I'll again add my endorsement. These are well-made regulated power supplies, capable of powering a floppy drive and many 3.5" hard drives and perfect for project work. I use one all the time.
 
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