That was plate power "input" in the old days.
at 70 percent efficiency you had 700 Watts out not 3000!!!
73, Ted K2QMF
On Wed, 23 Feb 2005 10:36:00 -0500 Gary Schafer <garyschafer@comcast.net>
writes:
> Just a note about power handling ability: I don't know what the BN-86
>
> was actually rated at but for 1kw input power on AM that equated to
> a
> power output of around 3000 watts by today's standards. We can
> actually
> run less power now than in the old days.
>
> 73
> Gary K4FMX
>
> ChetMoore wrote:
> > Byron
> >
> > The BN-86 has been around for 35+ years and was designed when we
> could only
> > run 1 KW. Force
> > 12 makes a 3 (b-12) and a 5 KW balun. Radio works I think makes a
> 3 and a 5
> > K Balun. If you are going
> > to be running 1.5 kw, then you might want something beefier. With
> a trap
> > antenna, you have the possibility
> > of hi swr entering the mix if you get water and or insect nests
> built into
> > the traps. The resulting hi swr
> > frequently manifests itself by heating and destroying the balun
> >
> > W2GD once told me that a balun was just something else to GO WRONG
> and says
> > to make a
> > coax choke balun and never have to deal with "balun" problems
> ever.
> >
> > chet N6ZO
> > ----- Original Message -----
> > From: "Byron Tatum" <bjtatum@ev1.net>
> > To: <TowerTalk@contesting.com>
> > Sent: Wednesday, February 23, 2005 1:54 AM
> > Subject: [TowerTalk] TH7-DX Balun
> >
> >
> >
> >>I have been away for a few days but noticed a few subject lines
> covering
> >>the TH7-DX balun, the BN-86. I have a TH7-DX that will be going up
> in near
> >>future, what is the best balun to use for it? I know that when I
> assemble
> >>it I will use the updated assembly notes for better 10 meter
> performance,
> >>but what about the BN-86 balun, is it the best one to use? Thanks,
> Byron.
> >>_______________________________________________
> >>
> >>See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless
> >>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041
> with
> >>any questions and ask for Sherman, W2FLA.
> >>
> >>_______________________________________________
> >>TowerTalk mailing list
> >>TowerTalk@contesting.com
> >>http://lists.contesting.com/mailman/listinfo/towertalk
> >>
> >
> >
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
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