Re: New Coil

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

Not the leakage, but it was still .03 uF before took it apart. Each section 
(before I unrolled them, looking for holes/burns) was .06 uF.

Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, May 01, 2005 8:06 PM
Subject: Re: New Coil


> Original poster: "Gerald  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Wow!  Didn't know the maxwells were good for that much current.  Doesn't 
> sound like a current spec failure, although a defect (I suppose) could 
> result in a current failure.  Have you tried to measure capacitance and 
> leakage.
>
> GerryR
>
> > Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>
> >
> > Finished dissecting the one with the crack. Tomorrow I'll post pics with 
> > desciptions tomorrow, need to get a shower and take a nap. I was quite 
> > surprised that these ARE designed like the 942C's with 2 sets of foil and 
> > a strip of metal film in the middle. 8 sections each about the size of a 
> > hershey bar. Connected in 4 sets of 2 parallel with lead clad copper 
> > strip and 3 layers of fish paper/2 layers of hdpe plastic seperating the 
> > sections. Only damage I could find was 1 of the connections between the 
> > sections was kinda loose compared to the others, which means too much 
> > peak current at one point. The weak connection heated up till the oil 
> > expanded and popped the case I guess. Had to have been from previous use 
> > as I don't see how I could hit over 25kA peak (40kA dead short with just 
> > a straight piece of wire)/25A rms with the mediocre-sized coil I was 
> > using. Oh well, hit or miss I guess, still better than buying new for 
> > $600 a pop. Have 3 others I might trade in for the 942C's ($115 worth to 
> > equal a maxwell, except 1300Apk instad of 25000 Apk rating, and new).
> \