[sdiy] Re: [AH] Vacuum Tube Motherboard

Theo t.hogers at home.nl
Wed Jun 5 20:33:48 CEST 2002


Think it is aimed at pp who want "high-end" and not to pp who need real
quality.

Theo



From: Jay Schwichtenberg <jays at aracnet.com>

> Eric,
>
> As someone who has dealt with audio in the PC I wonder how this works from
a
> noise standpoint. One of the hardest parts of building a PC or designing a
> card for one (especially audio stuff) is the EMI and noise inside. You
look
> at the FCC/CE EMI scans and there is a lot of high frequency energy
running
> around. Most of it is above 50 to 100 mHz and you can pick out the various
> clocks and their harmonics. Anyway. Tubes have a lot of open surface area
on
> the plates which stand up parallel to the cards in the box. It seems that
> these would act as big antennas and just suck up and high freq stuff. Is
the
> fact that the frequencies are so high that they don't affect the audio?
> Another thing could be that they are so high they are beyond the frequency
> response of the tube.
>
> Jay
>
> PS: I've always enjoyed your Glass Audio articles.
>
> > -----Original Message-----
> > From: owner-synth-diy at dropmix.xs4all.nl
> > [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of
> > metasonix at earthlink.net
> > Sent: Wednesday, June 05, 2002 12:57 AM
> > To: analogue at hyperreal.org
> > Cc: synth-diy at dropmix.xs4all.nl
> > Subject: [sdiy] Re: [AH] Vacuum Tube Motherboard
> >
> >
> > >Tube output from your PC! Yes, it's true! Well, maybe. Several
> > comments on
> > >Slashdot suggest it's a hoax. Interesting if it's for real...
> > uses a single
> > >dual-triode tube...http://www.hardocp.com/article.html?art=MzAy
> >
> > You gentlemen would be very surprised to learn
> > how big tube audio is in Asia. AOpen is in Taiwan.
> >
> > This product was inevitable.
> > You will see more PCs with tube audio sections built in.
> >
> > Some Slashdot people mocked the thing--
> > but that company will sell many tens of thousands
> > of mobos in Asian countries.
> >
> > (Actually, I thought seriously about making
> > a super-exotic PC with a built-in tube amplifier and a
> > big impressive looking art-deco cabinet with eye tubes
> > to indicate disk-drive status. But the FCC EMC testing
> > requirements were very costly to perform on PCs. I need
> > an investor to do this. Anyone got a spare $1 mil?)
> >
> >
> >
> >
> > E. Barbour
> > metasonix
> >
> >
>
>
>




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