Rectify ac input?

To: "'Tesla List'" <tesla-at-pupman-dot-com>
Subject: Rectify ac input?
From: Tesla List <tesla-at-stic-dot-net>
Date: Thu, 5 Mar 1998 19:20:14 -0600
Approved: tesla-at-stic-dot-net


----------
From:  Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
Sent:  Thursday, March 05, 1998 10:24 AM
To:  Tesla List
Subject:  Re: Rectify ac input?



> From:  Matthew Mills [SMTP:mattmills-at-mindless-dot-com]
> Sent:  Wednesday, March 04, 1998 2:13 PM
> To:  Tesla List
> Subject:  Re: Rectify ac input?
> 
> Correct me If I'm wrong but I would expect the best way to make a High
Voltager
> Rectifier would be to use Microwave Diodes (approx. $3) as these are
rated between
> 6 and 12kV  and -at-450mA each and so 12 of them set into a bridge
arrangement (3 in
> series on each leg) and set in potting tar would make a rather dandy HV
rectifier.
> 
> Matt
> (Just fiddling with sparks and arcs in Hamilton New Zealand)
> 
> Tesla List wrote:
> 
> > ----------
> > From:  Edward V. Phillips [SMTP:ed-at-alumni.caltech.edu]
> > Sent:  Tuesday, March 03, 1998 1:05 PM
> > To:  tesla-at-pupman-dot-com
> > Subject:  Re:  Rectify ac input?
> >
> > "I have LOTS of HV rectifiers from monitors but don't know how much
current
> > they are good for. Jim Lux has hopes of finding the specs for me so
maybe they
> > will be good for coil work."
> >
> >         Probably not good for more than a couple of milliamps at most.
> >
> > Ed
> 
> 
> 
> 
Sure, a bridge like that would work.  I "pot" mine in oil, though, to make
fixing the inevitable failure easier to fix.  Watch out if charging a cap
with the bridge and then discharging it. The voltage reversal on the cap
goes right through the bridge in reverse and destroys the diodes.