I have just no-load tested my homebrew power supply for my 8877 amp. The
transformer is rated 2900 volts at 1 amp. I am getting 4200 volts with just
bleeder load on it. This is above the maximum rating of 4000 volts for an
8877. Of course with idling plate current it might drop down into that range,
but I am wondering what you experts think about this.
By the way, if anyone in the NJ area would be interested in swapping with me, I
would prefer to have a more reasonable weight transformer. Something like 2200
volts at one amp, hypersil would be ideal. I don't know the weight of my
transformer but I can tell you this much - two of us used a hand truck to get
the beast into the basement, and it was all I could do as the man on the lower
steps, to hold it back. We had to go one careful step at a time. It is
probably over 200 lbs. Made by Chicago transformer I think. As far as I know
it has never been used, but you can be sure it will sit there and power a legal
limit amp forever on RTTY !!
Rick K2XT
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