[SEL] WOW-magneto charger

[Dave Croft]

----- Original Message ----- 
From: "Mark Shulaw" <frappi at wcoil.com>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Friday, April 01, 2011 9:13 PM
Subject: Re: [SEL] WOW-magneto charger


>
> Correct me if I am wrong but I believe this one is a production
> charger. Made to charge new bar stock steel from 0 magnetism to full
> strength so you have to produce a much stronger field to get the
> proper effect.  While the smaller chargers we use are just to freshen
> up the already charged but just slightly weak magnets. That 450 pound
> brute was made to do what we do not need it to do, Charge magnets all
> day long from 0 to full charge. So to answer your question we don't
> need it so yes we can make do with the smaller ones. The one I use
> here is only 20# or so and does what I need. But I am going to get a
> somewhat larger one some day.
>  I believe that the 450 pound brute may be to large for what most of
> us need by far. And yes some one mentioned keeping away if you have a
> pace maker, I would highly recommend that, along with some of the
> other implanted electronic medical devices.
>
>                    TTYL,  Mark
>
>
> At 01:52 PM 4/1/2011, you wrote:
>>All this raises an old question--one I have asked myself for years. It
>>boils down to this, "How much better a job does a large (ie 450 lbs.)
>>magnet charger do than a smaller one--say 100 lbs?" What happens when
>>the charger weight is dropped to, say, 15 lbs? I have charged magnets
>>for antique engines with a 15# charger built by some guy (from FL:)
>>who sells/sold them and also with my ~100# charger. BYou oth have worked
>>well and have fired an engine just fine after charging the magnets. I
>>am a real fan of "bigger is better" (as many of you who have seen my
>>KING DICK can attest.) However the "law of diminishing returns" has to
>>take affect somewhere in the charging of magnets!
>>         Dave


You have revived my senile memories and I have dug out the magnetiser I 
built 30+ years ago.
I wound the magnet myself with about 50 turns of very heavy windings.
To get the very high magnetic field I used a 50 volt transformer and a 
rectifier to give me a 50 volt
DC supply with which I slowly charged a very large capacitor. (100,000 
Microfarad).
I then discharged this with a Thyristor triggered with a button. Every thing 
metalic turned to the device!
Very short but the effect worked well.
I have dug it out and pictures are at
http://good-times.webshots.com/album/579990241sMmfWY
Best Regards.
Dave Croft.
Warrington.
http://oldengine.org/members/croft/
http://community.webshots.com/user/crftdv