[Johnson] JOHNSON KW MATCHBOX

[C E]

No, thanks. I was trying to see what your point was on
that post. Would it be worth modifying my own Box? Now
that I know, this is good information to have. Cal. 
--- radio <radio at inwave1.com> wrote:

> It worked great.  He added a large Hi Power
> transmitting cap, and it didn't
> change his Matchbox at all.  His call is WB0BBM if
> you want to ask him.
> 73,
> Paul, W9PJ
> ----- Original Message ----- 
> From: "C E" <catman351 at yahoo.com>
> To: <radio at inwave1.com>; <johnson at mailman.qth.net>
> Sent: Tuesday, December 05, 2006 12:57 PM
> Subject: Re: [Johnson] JOHNSON KW MATCHBOX
> 
> 
> > So about the ham that you know who did this and
> used
> > the internal antenna relay to switch in the extra
> > capacitance, added a line cord, and just plugged
> it
> > in...or used an inline switch to operate 160...
> >
> > Was it good or was it not? What was the result?
> Did he
> > like his operation or did he confine his matchbox
> to
> > the junkpile because it didn't work? Inquiring
> minds
> > want to know...
> >
> > Cal, N6kYR/8
> > --- radio <radio at inwave1.com> wrote:
> >
> >> I know a ham who did this and used the internal
> >> antenna relay to switch in
> >> the extra capacitance, added an line cord, and
> just
> >> plugged it in...or used
> >> an inline switch to operate 160.
> >> Paul, W9PJ
> >> ----- Original Message ----- 
> >> From: <w4pnt at highspeedlink.net>
> >> To: <boatanchors at listserv.tempe.gov>;
> >> <boatanchors at mailman.qth.net>;
> >> <johnson at mailman.qth.net>
> >> Sent: Tuesday, December 05, 2006 8:44 AM
> >> Subject: [Johnson] JOHNSON KW MATCHBOX
> >>
> >>
> >> > Morning AM'rs
> >> >
> >> > The modification to a Johnson KW matchbox for
> >> 160m.......
> >> >
> >> > Seems a long time ago someone @ Johnson factory
> >> did an addendum on this
> >> > but it never got in print. This I found in a
> >> manual I got from a friend &
> >> > he drew out by hand what he had seen & done to
> his
> >> matchbox.
> >> >
> >> > The modif consists of two large RF caps (I used
> >> mica) of 400pf @ 3kv, 5 rf
> >> > amps, one on one side if C-1 to ground & the
> other
> >> on other side to
> >> > ground, switched in by a quality, beefy relay
> >> while on 80m position.
> >> >
> >> > Thats a all there is to it. I can tune 160m no
> >> problem just as if I were
> >> > on any other band. Of coarse, I switched the
> relay
> >> via outboard switching
> >> > so as not to drill a hole the nice panel.
> >> >
> >> > Hope this helps some of you.......
> >> >
> >> > Warm regards
> >> > Dee
> >> >
> >> >
> >> > Johnson mailing list
> >> > Home:
> >> http://mailman.qth.net/mailman/listinfo/johnson
> >> > Help: http://mailman.qth.net/mmfaq.html
> >> > Post: mailto:Johnson at mailman.qth.net
> >> >
> >> >
> >>
> >>
> >> Johnson mailing list
> >> Home:
> >> http://mailman.qth.net/mailman/listinfo/johnson
> >> Help: http://mailman.qth.net/mmfaq.html
> >> Post: mailto:Johnson at mailman.qth.net
> >>
> >
> >
> >
> >
> >
>
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> 
> 
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> 



 
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