Author Topic: Cheap Power Supply  (Read 1905 times)

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Cheap Power Supply
« on: January 03, 2008, 10:40:43 AM »
Check this out ..

For those of us using Zephers, there is a cheep 12 v supply that most
of us have laying around the house or can get free for the asking or a
sharp eye on trash day. 12v+, 12v-, 5v+, 5v- and 3v-. 12v+ usually
about 25 or more amps. Fully regulated and filtered. Plenty of power
even for a club layout at a show!!!

Pull the power supply out of an old PC and follow the directions here
Anyone on this list will have no problems with this project. 10 bucks
worth of parts and about 2 hours.
Have fuN
Michael Duckett


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Re: Cheap Power Supply
« Reply #1 on: January 03, 2008, 11:21:35 AM »
Yeah, that's what was running my last layout, the White River and Northern. It's a very handy way to have everything in one box, including some excellent power for IC circuits, which often need very well-filtered 5VDC.


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Re: Cheap Power Supply
« Reply #2 on: January 03, 2008, 12:42:29 PM »
i use an old server power supply to power bench electronics.  works great and having the negative voltage is kick a$$.  i am planning on using a wall wart from an old modem to power my switch machines. i have a collection of old laptop supplies with 19VDC 2.64A.  each one can power a block if the voltage is dropped down a bit - just need a voltage regulator that can handle 3 amps and 2 caps to limit ripple...  that costs about $3.00.

i love recycling my electronics.

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