Hello builders,
My amp continues to grow. I'm trying to pick out a filament transformer, such
and easy task.
The amp is based on a 3cx800a7 which requires 13.5V +- 0.6V at 1.5A. I was
thinking that a 14V transformer would work great. Ideally, I would like to
build the amp with the option to eventually be expanded to a pair of 3cx800's
rather than the single. This would mean I need 3.0A
On digikey , they have a 14V 3.0A transformer
http ://search. digikey .com/scripts/ DkSearch / dksus . dll
?Detail&name=237-1279-ND
and a 14V 4.0A transformer
http ://search. digikey .com/scripts/ DkSearch / dksus . dll
?Detail&name=237-1094-ND
So my questions are: Is it acceptable to use the higher current rating in
the single tube version of the amp? Would current inrush be an issue? Is
the 3A version enough, should I get the 4A version or something even larger?
Or, is there something else I should be thinking about using?
thanks,
Paul, kg7hf
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