Re: Stacking MOTs

[FutureT-at-aol-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

In a message dated 8/28/00 9:51:40 PM Pacific Daylight Time, tesla-at-pupman-dot-com 
writes:

> Original poster: "Richard Kircher" <richard.kircher-at-worldnet.att-dot-net> 
>  
>  Hi All,
>   Has anyone figured out how many MOT HV secondaries (about 2100 volts each)
>  can be connected in series with the primaries connected in parallel to the
>  120 VAC line?  It would seem that primary to secondary break-down would
>  occur for those secondaries on top of the stack.  Does anyone have any
>  tricks for doing this like floating the primaries above ground some how?
>  
>  Dick

Dick,

I've used 4 in series, and gotten 62" sparks, but the other ones
were showing corona sparking at high stress points.  A huge
1:1 isolation transformer could be used to float the primaries.

John Freau