[Hallicrafters] Calling SR-2000 "Hurricane" Hams

[Mike Everette]

This is good advice for operation of ANY power grid
tube.  ALWAYS monitor the screen current.  The same
thing happens in G-E and Motorola VHF 250 watt
stations.  If your screen current runs too high, you
are going to severely reduce your tube life.

73

Mike
WA4DLF

--- Charlie <pincon at erols.com> wrote:

> Hi John.
> 
> Take a hint from a former NCL-2000 owner (also uses
> a pair of 8122's)  Watch 
> the screen current as an indicator of tank
> resonance.  It will peak when 
> tuned.  Start with light loading and keep cranking
> the load control up to 
> lower the grid and screen current, until the proper
> plate current is reached 
> with safe screen current.  If it's anything like the
> National amp, it's a 
> very simple and smooth process.
> 
> 73' Charlie k3ICH
> 
> 
> ----- Original Message ----- 
> From: <W4AWM at aol.com>
> To: <w5uw at sbcglobal.net>
> Cc: <hallicrafters at mailman.qth.net>
> Sent: Wednesday, November 16, 2005 11:21 AM
> Subject: Re: [Hallicrafters] Calling SR-2000
> "Hurricane" Hams
> 
> 
> > Hi Red,
> >
> > A friend of mine, Jon, N3AJB near Harrisburg, PA
> recently got a pair of 
> > them
> > and is frequenly on the air with one.  I just
> recently got one and am 
> > going
> > to recap the PS before I check the rest of the rig
> out.  I think the rig 
> > works,
> > but not positive.  I am looking for some spare
> 8122s, just in case.  Jon
> > tells me the rig is a bit tricky to tune up and
> the screen current has to 
> > be
> > monitored carefully.
> >
> > I don't have a lot of time to operate, but will be
> on playing with the rig
> > when I get it going.
> >
> > Jon says he loves to tell folks he is running
> "barefoot."
> >
> > 73,
> >
> >  John,  W4AWM
> >
>
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> 
>
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