On Jun 27, 7:57=A0pm, "Bob Eld" <nsmontas...@[EMAIL PROTECTED]
> 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
Triode.
> The max ratings of this tube are 2750 plate voltage, 250 ma plate
current=
,
> 175 W dissipation., 10 volt fil. The base has four short pins. The grid
i=
s
> 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.
Mine doesn't *quite* look like the few pictures I can find of it; so
it's likely to be the cheaper Chineese version I keep hearing about,
but it's an 810! Thanks for the help; much appreciated! ;-)
Ron
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