[AMRadio] would like to build a little homebrew project


Michael Mertes fnerks1 at yahoo.com
Wed Aug 15 18:39:52 EDT 2007


Hello Joe,

did you get a copy in the mail?

Thanks, Mike 

--- crawfish <crawfish at surfmore.net> wrote:

> I will send a snail-mail copy this weekend.
>                                                     
>           Joe W4AAB
> ----- Original Message -----
> From: "Michael Mertes" <fnerks1 at yahoo.com>
> To: "Discussion of AM Radio in the Amateur Service"
> <amradio at mailman.qth.net>
> Sent: Wednesday, August 01, 2007 2:47 PM
> Subject: Re: [AMRadio] would like to build a little
> homebrew project
> 
> 
> > I would like to have a copy of that article; for I
> > found an old homebrew transmitter recently that
> uses a
> > pair of 807s to modulate an 814. It needs a
> complete
> > rebuild, and I have not put power to it yet. The
> bad
> > news is that looks like it has been sitting in a
> barn
> > for the last 30+ years. The 814 has a rated plate
> > dissipation of 65 watts (is cheap and plentiful)
> and
> > will fit in an 811 socket... or so I hear. The
> > modulation transformer looks like it came out of
> an
> > ARC-5. I suspect that this transmitter may have
> been
> > built from a handbook article, but I don't have a
> HB
> > that old.
> >
> > Any thoughts?
> >
> > Mike /kz5m
> >
> >
> > --- crawfish <crawfish at surfmore.net> wrote:
> >
> > > I just received a copy of the 12th Radio
> > > handbook(1949). After WWII, 160m
> > > was given to LORAN for the most part, and you
> had to
> > > go to the pre-war Radio
> > > Handbooks to find amps for 160m.In recent days
> on
> > > this reflector, use of
> > > 4-65's were discussed. A 200 watt input amp
> using a
> > > 4-65 modulated by a pair
> > > of 807's is shown(it is actually a complete
> > > transmitter). Of course, this is
> > > 80-10m.Lots of good stuff in the old RADIO
> > > Handbooks. I have a pair of
> > > HK254's I want to use on 160m.I have an article
> for
> > > an 80-10m version in the
> > > 12th edition.
> > >
> > >                    Joe
> > > W4AAB
> > >
> >
> >
> >
> >
> >
>
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