Re: [TCML] High voltage diodes

[Carl Noggle <cn8@xxxxxxx>]

Hi, Matt,

If you are using half of your 15-30, you could get away with a 20 or 25 
kV diode.  You should almost double the max voltage you expect. An NST 
is massive overkill for the microamps you need for a static generator.  
You can use the little TC in a broken plasma globe or even a 555 driving 
an ignition coil.
I have diodes which are 25 kV at one amp.  They are strings of 1kV 5A 
diodes on a PC board 9" long and 1" wide.  I have designs on these 
myself, so I should probably ask $25.00 apiece.  Let me know if you are 
interested.
---Carl





On 9/8/2015 10:01 PM, Matthew Sweeney wrote:
> Hello, all does anyone know a good source for HV diodes for rectifying NST?
> Specifically up to 15KV at 30ma I would assume I need to account for RMS so
> probably around 20KV.
>
> I think I can get away with just one for half wave and maybe a cap for
> smoothing it a bit, but that would need to be a pretty decent cap to deal
> with 60HZ at that voltage.
>
> I'm using this to build a HV DC fed VDG does anyone have any hints or
> suggestions? I know I can find both diodes and caps in microwave ovens but
> its a pain to pull them apart and they are commonly too low voltage.
>
> I have found a few online retailers just wondering if there may be an
> alternate source, or anyone have some for sale etc.
>
> Thanks for any help!
>
> Matt Sweeney
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