Re: mmfd>pf change over

[Bill_Harris]

Good morning Steve:
     I'm interested where you got your source of information on the metric change over from mmfd to pf.  I thought the Germans were using "Hertz" back in the 30's. If my memory serves me correctly, that was slightly before the transistor came on the scene.  Appreciate any info you can direct me too.

73's & Merry Xmas

Bill_Harris

> uuF was used to spec cap values in tube equipment.
> The introduction of semiconductors forced a conversion
> to use the 'pico' prefix.
>
> Same with hertz.  Tube gear measured frequency in
> cycles per second.  The transistor changed all of
> that.
>
> Today, the use of surface mount parts has caused the
> need for 'nano.'
>
>
>
>
>
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[zeke7237]

You guys are taking this waaay too serious .. he was FOOLING AROUND!


On Fri, 17 Dec 2004 16:34:28 +0000, Bill_Harris <[hidden email]> wrote:

> Good morning Steve:
>      I'm interested where you got your source of information on the metric change over from mmfd to pf.  I thought the Germans were using "Hertz" back in the 30's. If my memory serves me correctly, that was slightly before the transistor came on the scene.  Appreciate any info you can direct me too.
>
> 73's & Merry Xmas
>
> Bill_Harris
>
> > uuF was used to spec cap values in tube equipment.
> > The introduction of semiconductors forced a conversion
> > to use the 'pico' prefix.
> >
> > Same with hertz.  Tube gear measured frequency in
> > cycles per second.  The transistor changed all of
> > that.
> >
> > Today, the use of surface mount parts has caused the
> > need for 'nano.'
> >
> >
> >
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Meet the all-new My Yahoo! - Try it today!
> > http://my.yahoo.com
> >
> >
> > _______________________________________________
> > Elecraft mailing list
> > Post to: [hidden email]
> > You must be a subscriber to post to the list.
> > Subscriber Info (Addr. Change, sub, unsub etc.):
> >  http://mailman.qth.net/mailman/listinfo/elecraft
> >
> > Help: http://mailman.qth.net/subscribers.htm
> > Elecraft web page: http://www.elecraft.com
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>

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