[Boatanchors] [Milsurplus] 12-24 vdc converters and toroid cores - Summar...

[rbethman]

Then there is another start point to consider.

One "could" add one of the 120VAC alternators that a LOT of contractor 
types have been doing for about six or seven years.  Then you can work 
out the necessary power supply just like a wall plug beginning!

Bob - N0DGN

WA5CAB at cs.com wrote:
> Yep, close enough for government work.
>
> Actually there is one more option not yet mentioned.  Which would also 
> involve a transformer operating at higher than line frequencies.  I saw an 
> article similar to this in probably a late 50's or early 60's vintage QST.  It 
> involves pulling the alternator and getting inside of it.  If you bring out 
> the three or four wires from the three-phase stator to a transformer, 
> rectifier and regulator, and connect that to the upper 12 volt battery, the second 
> battery will be able on charge while being used, and you won't run into the 
> problem of having to shut down the 24 volt system to recharge it.
>
> The actual article I remember produced something like 1250 VDC to run a 
> medium power HF transmitter.  But the concept is similar, except for the 
> charging regulator, and if anyone were going to attempt this, it might be 
> worthwhile finding the article.  About all else I recall is that the photograph of 
> the transformer was in black and white.
>
> In a message dated 10/6/2009 1:46:55 PM Central Daylight Time, 
> wh7hg.hi at gmail.com writes: 
>   

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