[Amps] Source for economical HV diodes?

[R.Measures]

On May 9, 2004, at 7:23 PM, Dave Haupt wrote:

> I'm in the final stages of building a small hipot
> tester.  The last item I need is high voltage
> rectifier diodes.  My diode stacks need to withstand
> 20kV.  I know I can series lots of diodes, but this
> becomes a LOT of diodes if I start with 1kV diodes!

Hello, Dave -- I've used focus rectifiers for such.  They were rated 
for 7kv,100mA.
>
> I've found a few sources for microwave oven diodes,
> but I'd still need to series several
> not-very-inexpensive diodes.

I used long strips of perfboard  for my 30kv high-pot tester.  With 
3-diodes per row, it only takes a dozen rows of diodes per strip, which 
is not all that big.
>
> Ultimately I need four such stacks of HV diodes.

For a quadrupler?
>
>
> Dave W8NF
>
>
>
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org