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[Amps] Re:

To: <amps@contesting.com>
Subject: [Amps] Re:
From: n3ji at yahoo.com (Joe Isabella)
Date: Fri Apr 11 09:58:09 2003
The '706 is one of them.  If memory serves, Icom uses the ALC for power
control and it takes a few mS to react.  Aggrivating!!

Joe

--- Bill Coleman  N2BC <n2bc@stny.rr.com> wrote:
> Lynn,   5KV @ 600mA is 3KW input.   If you're only getting 500W out,
> I would
> suspect something amiss in the tank circuit.   I'd expect 1500W to
> 1800W out
> with 3000W in.
> 
> Just had a thought....   You say 20W drive,  which seems low for that
> monster tube, but.... I wonder if you are driving it with an ICOM?   
> Some
> of the ICOMs are (in)famous for a full power spike even when cranked
> down to
> QRP levels.  I don't know which ICOMs - someone could jump in with
> that.
> 
> Bill
> ~~~~~~~~~~~~~~~~
> Bill Coleman    N2BC
> http://home.stny.rr.com/n2bc
> ----- Original Message -----
> From: "Lynn" <no9z@soltec.net>
> To: "Merv Schweigert" <kh6jj@mobettah.net>; <amps@contesting.com>
> Sent: Thursday, April 10, 2003 4:08 PM
> Subject: [Amps] Re:
> 
> 
> > The problem with the power supply occurs with   a power output of
> > around 500 watts.... i.e. less than 600 ma total current ( its a
> big tube
> > with about 20 watts drive)  3cpx5000.
> >
> > I am using a full wave rectifier with a center tapped  secondary. 
> 50 uf
> > of
> > capacitance.   The power supply can provide the current and voltage
> if it
> > is turned up slowly.    The issue here is the instant current draw
> from
> > the cw signal.
> >
> >
> > thanks
> > Lynn   NO9Z
> >
> >
> >
> > Merv Schweigert wrote:
> >
> > > >
> > > >   I have almost completed a nice  5000 v   2amp supply using a
> large
> > > > Wilcox transformer with a capacitive filter.   50uf at 7kv.
> > >
> > > How much current are you drawing under load ??  5000 v at 2 amps
> > > (if your drawing that much) is 10KW and a 25 amp breaker is way
> > > to small.  If your drawing 1 amp its still too small a breaker..
> > > Merv
> >
> > _______________________________________________
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> > Amps@contesting.com
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> >
> 
> 
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