6KG6A/EL509 Substitute for 8950 Tube?
eDoc at NETZERO.NET
Wed Nov 24 11:48:47 EST 1999
I am looking at an amp that runs one 8950 driving three
I know that the 8950 tubes are priced out of sight but am
told that with a filament change from 12v to 6.3v the Svetlana
6KG6A/EL509 is a direct replacement. True?
If more than the filament voltage needs to be changed, what are
the other changes, please?
What sort of average peak SSB output should I expect from such a
design? Not momentary whistle or shout-swing but solid voice output
Any reason why converting this to 20 meters would be improbable?
I understand there is room in the RF compartment for larger coils.
Any recommendations as to how to instruct the seller to test the
power transformers with a DVM? He is willing to do so. The internal
power supply converts 12VDC to the necessary voltages. They are
designed for mobile use and thus fit my all-DC shack plans nicely.
(I am actually getting three of these, hope to yoke two together with a
splitter-combiner and use the third for spare parts. I'm guessing 600
watts SSB output on 20m from a pair. Yes, I will use a good filter on the
I am also told that the 6KG6A/EL509 tubes run about $20. each,
anyone have a better source if I buy 4 or 8 at a time?
- Thanks! & 73, DavidC K1YP
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