[Amps] Resistor Types

[jeremy-ca]

I still have fond memories of working for High Voltage Engineering Corp back 
in the 69-70 era. Our typical product was 200-500KV @ 100-200ma power 
supplies primarily used in textile processing. There was a 1 megavolt supply 
under construction for some atomic particle accelerator when I left.

> So I think in this application the diodes are quite safe.
>
>> Now this was from people making diodes all the way from microwave
>> detector diodes through small signal, small rectifier and up 5000 Amp
>> devices for electric trains....
>
> I can imagine that when stacking 5kA diodes to make a 22kV rectifier,
> these issues become quite a bit more critical than in a "low power" ham
> radio amp! ;-)
>

I havent seen equalizing resistors used in ham, commercial or industrial PS 
strings for at least 20 years; many longer than that. The diode 
repeatability over any number of production runs is well within tolerances. 
Unless you are buying floor sweepings from unknown sources that is.

Carl
KM1H
>