Re: mysterious coil failure (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 01 Nov 2007 17:43:16 -0800
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: mysterious coil failure (fwd)

Hi Steve,

I reduced to hair dryers from testing huge power resistors, heating 
elements, and other misc. loads while using a single meter for these 
tests and needed the current to remain the same (due to switching over 
measurement types). The hair dryers worked better than anything else for 
this (and they came with an on/off switch).

But really, anything will work as long as 2 meters are employed. With 2 
meters side by side, the time is no longer a factor and anything can be 
used (even if current is changing), just as long as both readings are 
taken at the same time. So really, there's no need to even use water 
with an element (you only need to have the switch on long enough to 
write down the readings).

Take care,
Bart

Tesla list wrote:
> ---------- Forwarded message ----------
> Date: Wed, 31 Oct 2007 21:44:19 -0600
> From: S&JY <youngs@xxxxxxxxx>
> To: 'Tesla list' <tesla@xxxxxxxxxx>
> Subject: RE: mysterious coil failure (fwd)
>
> Bart & list,
>
> I have had trouble with hair dryers as loads, because the motors are usually
> "universal" types with brushes that put out a lot of electrical "hash".  In
> my case, the impulses messed up my readings with a digital multimeter.  So I
> recommend using electric frying pans filled with water, with the temp
> control set above the point where the pan cycles on and off, e.g. 350
> degrees F.  This makes a very good electrically quiet load.
>
> --Steve Y.
>
> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx] 
> Sent: Wednesday, October 31, 2007 8:25 AM
> To: tesla@xxxxxxxxxx
> Subject: Re: mysterious coil failure (fwd)
>
>
> ---------- Forwarded message ----------
> Date: Tue, 30 Oct 2007 20:10:36 -0800
> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: mysterious coil failure (fwd)
>
> Hi Gary, All,
>
> I meant to say "concurrent" readings (happening at the same time), not
> concentric. Sorry about that. Looks like I need to fix that. The point
> is to view both V and I at the same time. The values can bob up and
> down, so using a single meter is "not" very accurate. Accuracy with this
> method requires 2 meters side by side. Using a hairdryer for the ballast
> is my recommendation. It's been the best load that has the least
> fluctuation in my experience. Just let the hairdryer heat up and the air
> does a great job to stabilize the load. This method works great and was
> first described to me by Terry Fritz. I've done it with and without the
> RC network (it's not needed).
>
> Take care,
> Bart
>
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