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RE: (ET) Cheap DC-DC pack



I checked the page.  IF it is isolated, you have a perfect solution for 
only $35 or so.  Good to 60 amps too!  The manual and wiring is not at 
allelectonics, but you might be able to find out about isolation at 
Lucent.  I think I would check with a DVM on line droop but I expect you 
might want 8 of these and tap off at 20V instead of 17.5.  It depends on 
how good Lucent did under a normal load.  3 fully charged batteries are 
actually 22V or so, and 4 are 28+V.  We 'say' 18V is right and 'say' 24V 
burns out the lift but we really mean 3 batteries is fine and 4 batteries 
burns out the lift respectively.

Larry Elie


-----Original Message-----
From: Bfayette aol com [mailto:Bfayette aol com]
Sent: Wednesday, October 31, 2001 12:39 PM
To: elec-trak cosmos phy tufts edu
Subject: RE: (ET) Cheap DC-DC pack


What do you guys think of this: All Electronics 
(www.allelectronics.com)has their DC-40 2.5V 60A converter for 36-72V for 
$5.  If you got 7 of these and hooked the outputs up in series, you should 
be able to make a 17.5V pack off of which you can tap 12.5V.  As long as 
the output is isolated from the input, I can't see any reason why this 
wouldn't work.  They don't have the spec sheet, but we should be able to 
dig this up.  What do you all think?

Brad