[Amps] Alpha 77D anode choke swap?
donroden at hiwaay.net
donroden at hiwaay.net
Mon Apr 30 10:29:30 EDT 2018
> But, if your doing 15kw pep, you better have your imd down by 10 db more
> than the yoyo running an ameritron, or you'll instantly be run off the
> band. You won't do that with 30 uF of capacitance. Just //wont// happen.
> --Shane
> KD6VXI
.
But if you have the $$$ to run 15KW ( think total system QRO++
costs... coax and antennas , change over relays, ect ) ... then the
costs of occasionally replacing tubes with handles is all part of the
yearly expenses.
)n the other hand, in commercial broadcast I've been running a
4CX20,000 @ 11KV @ 3.5A for over three years now... 28KW FM output and
24/7 at the end of a "really nasty" utility feed, and like the
Energizer Bunny, it just keeps on running and running with 1960's (
really slow ) relay overload logic on the screen and cathode.
Don W4DNR
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