In grounded grid a 304TL will provide a power gain of
about 4.5. 200 watts drive for 900 watts output.
I have considered 1 304tl driving 2 all in grounded grid. I have a lot of
304tls.
73
Bill wa4lav
-----Original Message-----
From: Steven Grant W4IIV <stevengrant98@yahoo.com>
To: 2 <2@vc.net>, Jim Isbell <millenniumfalcon@cableone.net>, AMPS
<amps@contesting.com>
To: <amps@contesting.com>
Date: Sun, 23 Mar 2003 14:02:01 -0800 (PST)
Subject: Re: [Amps] 833A in linear for SSB
this tube will need 3000 volts with 70 volts bias to get 1600 watts in class B.
how about a 304TL...cool looking tube, and more power..3000 volts..290 volts
bias, gives you 1800 out
2 <2@vc.net> wrote:
>I am new to the list so maybe this is a subject that has been heavily
>covered, if so please direct me to the resources.
>
>I am trying to come up with a project to interest my grandson in ham
>radio so that I will have someone to leave my S-Line to when I am gone.
> It will take something pretty "cool", to use his words, to impress him.
> I think a big linear amp for the S-Line would be a relatively easy
>project (at least in complication of circuitry) and if I use some bog
>old tubes it will have the "cool" aspect.
>
>I have an 833A that I would like to make into a Kw linear amplifier.
>Probably a grounded grid circuit to make it as simple as possible.
>
>Does anyone have any sources for schematics for such an amplifier?
** The sticky wicket is that the Mu of an 833 is a bit low. Thus, to
drive one takes a bunch.
>
>I am not stuck on the 833A however and have been looking at a 4-1000A
>(for which there are MANY schematics) or a bank of 5@ 813's lying on
>their sides in an S-Line type cabinet.
** 5-813s sounds good.
>I am open to any suggestions,
>projects for sale, projects to resurrect, etc. But the main criteria is
>"Cool", not "efficient"
>
>Any suggestions will be greatly appreciated and considered.
>
>
>
>_______________________________________________
>Amps mailing list
>Amps@contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
www.vcnet.com/measures.
end
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STEVEN GRANT W4IIV
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