[Amps] 4-1000A in LK2000

[Alek Petkovic]

It gets grounded as well.

I was actually going to suggest that he checks that all 3 grid pins 
on the socket are grounded. I guess if they weren't, (screen not 
grounded) then he would see no output at all. Therefore, as others 
have suggested, it is input tuning issue.

73, Alek. VK6APK

At 11:29 AM 4/07/2009, RICHARD SOLOMON wrote:

>Can I ask a dumb question ??
>
>
>
>What do you do with the Screen Grid ?
>
>
>
>Don't you need an additional screen supply ?
>
>
>
>73, Dick, W1KSZ
>
> > Date: Fri, 3 Jul 2009 20:26:01 -0700
> > From: wc6w_amps at yahoo.com
> > To: klahaie at centricata.com; amps at contesting.com
> > Subject: Re: [Amps] 4-1000A in LK2000
> >
> >
> >
> > Hi Kevin,
> > The input impedance of a 4-1000A in "strapped" grounded grid is 
> circa 110 ohms.
> >
> > A 3-1000Z runs around 65 ohms.
> >
> > Some input network tweaking will be necessary with a transistorized driver.
> >
> > 73 & Good evening,
> > Marv WC6W
> >
> > http://wc6w.50webs.com/
> >
> >
> > <snip>
> > >
> > > Is the input impedance that different from the 3-1000?
> > >
> > > 73 Kevin K7ZS
> >
> >
> >
> >
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