On 12/20/2013 11:00 PM, Charlie Cunningham wrote:
BTW, Biii - tip/suggestion - for those series-connected electrolytics you
probably should put a pair of equal value resistors - one across each series
capacitor, as the leakage currents will not be equal in each capacitor in
each series string and the DC voltage won't divide equally across each
capacitor unless you put individual "bleeder" or "swamping" resistors across
each cap in the series pair to equalize the DC across each capacitor in the
series! I'll be interested to see how it turns out! I never had a DX-100
"Benton Harbor Kilowatt"! I did have a DX-40 for a while, but no 160 on
that one, though! I do have an EF Johnson Navigator in pretty good condition
that needs to have all of its electrolytics replaced because of their age.
I does have 160 (and 11 meters also!).
Good luck and Merry Christmas!
73,
Charlie, K4OTV
Hi Charlie,
In the DX-100 there is already a big honking pair of bleeder resistors
so that the bleeder is divided with one half across each half of the
series pair. I think that's what you meant. The DX-100 originally had
two caps rated at 450 volts in series and the bleeder set up that way.
73,
Bill KU8H
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