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A tube by any other name!

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BaronKyle

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A tube by any other name!
« on: 24 Oct 2016, 04:43 am »
I'm sure this is old hat for many individuals on this board.

Can anyone give me a brief background on why 3 names are needed for the same tube?

A 6L6GC is a 7581 and it is also a KT66.

I believe one is domestic naming, another international standard, the third??  Industrial naming?

Is this another way to stick it to the metric system?  Hehe
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FullRangeMan

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Re: A tube by any other name!
« Reply #1 on: 24 Oct 2016, 09:47 am »
Quote from: BaronKyle on 24 Oct 2016, 04:43 am
I'm sure this is old hat for many individuals on this board.

Can anyone give me a brief background on why 3 names are needed for the same tube?

A 6L6GC is a 7581 and it is also a KT66.

I believe one is domestic naming, another international standard, the third??  Industrial naming?

Is this another way to stick it to the metric system?  Hehe
Different manufacturers, versions or quality grade.
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HAL

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Re: A tube by any other name!
« Reply #2 on: 24 Oct 2016, 01:16 pm »
Those are typically the US, Military and European model numbers for a tube.  As stated, they can be different from each mfg.   
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