On Jun 27, 8:01=A0pm, Tim Wescott <t...@[EMAIL PROTECTED]
> wrote:
> Bob Eld wrote:
> > "Ron Hubbard" <r...@[EMAIL PROTECTED]
> wrote in message
>
>news:add5c12c-1a93-43b8-bea3-0509af48e5b9@[EMAIL PROTECTED]
> >> I bought =A0a bunch of vacuum tubes from a surplus electronics store
> >> that was going out of business, so many of them weren't marked as to
> >> what tubes they were-- but they were cheap. One in particular is a
> >> large eight inch tube that has four pins at the bottom and two
> >> connectors for electrode caps, one at the top and another one
sticking
> >> off to the side in an "L" shaped arrangement.
>
> >> It's obvious it's a power tube of some sort, but does anybody have
any
> >> idea what kind? Diode or triode? I don't know if it's a tube number,
> >> but marked at the base by the filaments is the number 35049... Any
> >> help indentifying this tube would be appreciated.
>
> >> Ron
>
> > Hard to say without more info, but it may be an 810, Transmitting
Triod=
e.
> > The max ratings of this tube are 2750 plate voltage, 250 ma plate
curre=
nt,
> > 175 W dissipation., 10 volt fil. The base has four short pins. The
grid=
is
> > the side cap and the plate the top cap. The tube is 8 1/2 in long and
2=
9/16
> > diameter. The base is a bayonet mount.
>
> IIRC there are other tubes in the same package, but AFAIK (and I'm no
> expert) the 810 is most likely.
>
> --
>
> Tim Wescott
> Wescott Design Serviceshttp://www.wescottdesign.com
>
> Do you need to implement control loops in software?
> "Applied Control Theory for Embedded Systems" gives you just what it
says=
..
> See details athttp://www.wescottdesign.com/actfes/actfes.html-
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quote=
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Thanks, Tim; I'll look into it. ;-)
Ron
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