Jon Ogden wrote:
<some good stuff snipped>
> I suspect the transformer. The DC output of the supply is directly
> related to the input. Caps help to filter out the ripple due to the
> rectification and so may raise your RMS voltage a bit closer to the peak
> DC voltage, but I don't think that it's a whole kilovolt as you are
> seeing.
> >
> >Thanks in advance. Before I start spending money on new filter bank
> >would appreciate your input.
>
> My gut tells me it's not your filter bank. Perhaps one of the "new"
> diodes you put in went bad, but perhaps your transformer is just not
> properly working. I really suspect the transformer. Also, is your input
> voltage really 230 Volts? You might want to check that.
> If you have some form of HV probe and IF you are careful, measure the
> output voltage from the transformer. Or, to be safer, you could put a
> variac on the input of the transformer and measure the output with a low
> input voltage. It looks like it's approximately a 10:1 transformer
> ratio. So set your variac to 10 volts on the input and you should get
> around 100 Volts on the output. That's a little safer than measuring
> 2600.
>
Jon has given good advice. The only other thing that occurs to me is
the possibility that you lost a fuse in one leg of your 220. However,
I'm sure anyone but me would have already checked that out.
Good luck and let us know what you discover.
73,
--
Ken K4XL
grimm@lynchburg.net
Boatanchor Manual Archive - ftp://bama.sbc.edu or
ftp://198.28.36.115/pub
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