[Boatanchors] B&W 850A Doc(s) needed

[Gary Schafer]

Hi Bob,

Ok Jim and another Bob also straightened me out! The 852 was the one I was
thinking of that had all copper tubing.

I have an 850A like yours in a pair of 4-400 amp and yes it does have a few
turns of tubing and the large wire and the strap coil for 10 meters.

What info are you looking for?

73
Gary  K4FMX


> -----Original Message-----
> From: Rbethman [mailto:rbethman at comcast.net]
> Sent: Tuesday, May 09, 2006 5:48 PM
> To: garyschafer at comcast.net; boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] B&W 850A Doc(s) needed
> 
> Gary,
> 
> I have the 850A, and it has the tubing toward the rear part, and (It
> looks like:) about #10 or #12 wire for the front part of the coil.
> 
> It also has the 10 mtr strap attached to the rear of the ceramic plate.
> 
> Bob - N0DGN
> 
> Gary Schafer wrote:
> 
> >Bob, which one do you have? There was an 850 and an 850A. One had copper
> >tubing for the main coil and the other had wire and more turns for the
> main
> >coil. I can never remember which model is which.
> >
> >The difference is that the one with the copper tubing (and fewer turns)
> is
> >for low impedance plate loads like a 4CX1000 etc. The one with the wire
> coil
> >has more turns and is for tubes like 4-1000 or a pair of 4-400's with
> higher
> >plate impedance.
> >
> >73
> >Gary  K4FMX
> >
> >
> >
> >
> 
> --
>                        Bob Bethman - NØDGN
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