In a message dated 7/4/02 2:33:07 AM Eastern Daylight Time, ni4l@charter.net
writes:
>
> the filiament voltage ........ for the 4-250A tubes can you go over a
> bit, say to 6 volts?
You can, but it is like constantly running an automobile engine above red
line RPM.
> will this adversly affect the tube what i really need to know will it
> kill it right away.
>
Depends on your definition of right away, but it will shorten the life by
probably 75% and accomplishes little or nothing.
What is the max filiament voltage any of you have put on this tube and
>
> made it last and preform to your satisfaction? Eimac says 5.0 +/- 0.25V.
> thanks for any help you can give
> Chris NI4L
>
>
Tubes, like other things, are meant to be operated within the manufacturer's
specifications.
73 de
Dave, WT8R
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