[Boatanchors] to better communication - was: Xtals (even mHz)

[J. Forster]

Filaments were wires, often naked. They came heaters when indirectly
heated cathodes came on the scene. Some tubes have heaters and cathodes.

Makes sense to me.

-John

================

> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net
> [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of D C *Mac*
> Macdonald
>> I'm not sure about that "filament/heater" difference.
>
> Filaments used to be called heaters until someone decided they should be
> called filaments.  They're heaters because that's their function, to get
> really, really hot to allow for electron flow.  (Yeah, I know about the
> whole hole vs. electron argument.  Obviously I'm old school.)  Again, this
> is an example of change for the sake of change.  We still talk about
> directly heated vs. indirectly heated tubes, not directly vs. indirectly
> filamented ones so, again, let's be consistent.
>
> Surely someone will come up with an argument that says how they're really
> filaments and calling them heaters is wrongity-wrong but ... well, they
> can
> recall my previous comments regarding mistletoe.  :-D
>
> Best regards,
>
> Michael, WH7HG BL01xh
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki Nô!
>
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