The SB-200 uses 2 572B's - not a 3-500. Got one sitting 2 feet from the
computer on which I am typing.
34 years old and still works well.
Clint - W5PT
----- Original Message -----
From: Charles Harpole
To: w1ksz@q.com ; amps@contesting.com
Sent: 29 November, 2009 11:15 PM
Subject: Re: [Amps] SB-220: 1,800 Watts Output ?
Take it from me, ALL SB-220s had two 3-500s in them and only those. The
SB-221 also had same, but had 10m.
The SB-200 had ONE 3-500.
Beware of eBay..... people find an ad, copy most of its meaning, not the
exact words, and offer it. If people are fool enuf to send in money, the
product and the lister disappear. First test is a phone call and the seller is
not a ham, etc. 73
Charles Harpole k4vud@hotmail.com
> From: w1ksz@q.com
> To: amps@contesting.com
> Date: Sun, 29 Nov 2009 22:57:07 +0000
> Subject: Re: [Amps] SB-220: 1,800 Watts Output
>
>
>
>
>
>
>
> Are you looking at the same amp ? He relisted it, at a lower starting price,
> but no bidders. The one and only bidder on the last listing was a newbie
with
> -0- feedback ... hhmmmm ...
>
> The SB-220 has always had two 3-500's, there may have been a later model,
> w/o 10 meters with one tube, not sure (the brown ones).
>
> 73, Dick, W1KSZ
>
> > Date: Sun, 29 Nov 2009 16:51:18 -0500
> > From: sub1@rogerhalstead.com
> > To: barockteer@aol.com
> > CC: Amps@contesting.com
> > Subject: Re: [Amps] SB-220: 1,800 Watts Output
> >
> > Which reminds me, Did all of them have two tubes in the final? I'll
> > swear the one I had only had one tube in the final, but that was over 30
> > years ago which is a long way to stretch an old memory.
> >
> > OTOH he now has 19 bids and the price is in the neighborhood of one in
> > good condition. I paid less than $800 for one in mint condition, but
> > that would come out to be about the current bid in today's dollars.
> >
> > 73
> >
> > Roger (K8RI)
> >
> > Roger wrote:
> > > Tony Brock-Fisher wrote:
> > >
> > >> That's as good as the KWS-1 listed that will do 1500W out, "because
that's what's on the serial number plate"...
> > >>
> > >>
> > >>
> > > I'd truly like to have a KWS-1 again, but he's going to have to include
> > > the magic formula for getting 1500 watts out of a single 4CX250, or was
> > > that a 150? It's been a good 30 years plus since I had that rig. It not
> > > only worked well, but did a good job of heating the ham shack in the
> > > basement. <:-))
> > >
> > > 73
> > >
> > > Roger (K8RI)
> > >
> > >> -Tony, K1KP
> > >> _______________________________________________
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> > >> Amps@contesting.com
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> > >>
> > >>
> > >>
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> > >
> > >
> > _______________________________________________
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>
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