Power supply pictures

Tue Jun 4 16:51:22 EDT 1996

Very nice, Gary. However, having been a Chief Operator at The Dalles 
Amplifier (I mean, The Dalles Dam), I know what it's like to have my hand
on the "Big Switch" controlling 2,000 megawatts of P.E.P. --that is, Pretty 
Enormous Power.

For a tour through the inside of my present 600 megawatt QRP rig, set your
Browser to:

http://www.nps.usace.army.mil/opdiv/libby/libtour1.html

Note that we have abandoned the use of "hollow state devices" for a 
more robust technology, Magnetic Amplification!

By injecting the output of my TS-50 into the voltage regulator boost circuits
of the five 120 megawatt "rotary amplifiers" we are able to modulate their 
output with CW, SSB, AM, FSK, or any other mode we want to dream up.

The beauty of this system is that no antenna is necessary for propagation, 
nor is any receiver needed at the other end! We simply connect into the NW 
USA power grid and merrily work all appliances plugged in to any wall socket
anywhere on the continent. Look out domestic contests, here we come!

Sunspots? We don't need no stinkin' sunspots!

Steve Zettel  KJ7CH                     kj7ch at libby.org
Libby Dam, MT USA               steve.m.zettel at usace.army.mil 

______________________________ Reply Separator _________________________________
Subject: Power supply pictures
Author:  k7fr at ncw.net (Gary Nieborsky) at Internet
Date:    6/4/96 1:54 PM

If your interested you can see photos of my power supply for my new killer 
amplifier.

The first one is my filament supply and the second is my plate supply.

The other two are for panel lights and cooling water feed pump.

Photo location:

http://www.gcpud.org/hydro_op.htm

~8^{)

73 Gary K7FR
Antenna Farms

"I don't live in the middle of nowhere, but I can see it from the top of my 
tower."

>From donovanf at sgate.com (Frank Donovan)  Tue Jun  4 23:39:54 1996
From: donovanf at sgate.com (Frank Donovan) (Frank Donovan)
Date: Tue, 4 Jun 1996 18:39:54 -0400 (EDT)
Subject: The Reflector(s)
Message-ID: <Pine.OSF.3.93.960604183600.12412C-100000 at jekyll.sgate.com>

Lee,
I'd suggest that contest station design and construction are also a very
valid discussion items on the contest reflector.  The reflector
would be a shadow of its current existence if it could not serve as a
forum to share knowledge and experience in those areas.   Contesting
itself would be a much less interesting hobby without this facet.
73
Frank
W3LPL
donovanf at sgate.com

>From donovanf at sgate.com (Frank Donovan)  Tue Jun  4 23:59:06 1996
From: donovanf at sgate.com (Frank Donovan) (Frank Donovan)
Date: Tue, 4 Jun 1996 18:59:06 -0400 (EDT)
Subject: Tower Ordinance
Message-ID: <Pine.OSF.3.93.960604185331.12669A-100000 at jekyll.sgate.com>

Mike,
Section 106.E.3 of the Howard County (MD) Zoning Regulations requires that
towers and antennae shall be set back a distance from all lot lines equal
to the height of the structure as measured from ground level.  There are
no further restrictions on the height or quantity of towers.  This liberal
zoning regulation is exactly why I built my new home in Howard County in
1986!  
73!
Frank
W3LPL
donovanf at sgate.com

>From donovanf at sgate.com (Frank Donovan)  Wed Jun  5 00:15:58 1996
From: donovanf at sgate.com (Frank Donovan) (Frank Donovan)
Date: Tue, 4 Jun 1996 19:15:58 -0400 (EDT)
Subject: (no subject
Message-ID: <Pine.OSF.3.93.960604190328.12669C-100000 at jekyll.sgate.com>

On Tue, 4 Jun 1996, Peter C. Wotherspoon wrote:

> Another question, Frank.
> Why, or so I've been told, can't Beverage antennas be used for Xmit?
> How about feeding the beverage--- 600 to 300 Xformers, then join the 
> ribbon leads together and transform to 50 ohms for the coax to the shack?
> Maybe just point me to a book!
> Thanks agn
> Peter

Peter,
Beverages ARE used for transmitting!
Their good directivity and ease of installation (low to the ground, no
tower construction) makes them an ideal candidate when low probability of
intercept is desired.  For example,  U.S Special Forces routinely use the
Beverage for HF transmission and reception by man portable HF 
communications equipment operating over single hop distances, typically
field unit to a fixed net control station.  By the way, they are very
proficient in CW operations as well!

HF Beverage arrays are also used for transmitting applications requiring 
extremely narrow beamwidths and ease of maintenance are required.  The
efficiency of a multiple Beverage array (typically 16 or more Beverages,
I've seen as many as 128 Beverages in an array) is much better than
the efficiency of a single Beverage antenna.  The individual Beverage
elements of such a Beverage array are typically spaced by a distance of
about twice their height above ground.

The usual impedance matching tricks apply to transmitting Beverages, no
magic, just straight forward antenna and RF engineering.

73!
Frank
W3LPL
donovanf at sgate.com

>From donovanf at sgate.com (Frank Donovan)  Wed Jun  5 00:20:31 1996
From: donovanf at sgate.com (Frank Donovan) (Frank Donovan)
Date: Tue, 4 Jun 1996 19:20:31 -0400 (EDT)
Subject: W3LPL Open House - June 15
Message-ID: <Pine.OSF.3.93.960604191817.12669E-100000 at jekyll.sgate.com>

Hi Tim!

Just come on out and join in the fun!  We're expecting a huge turnout of
contesters from far and wide

On Tue, 4 Jun 1996, Tim Totten, KJ4VH wrote:

> Frank:
> So I'm almost certainly coming out, and I'd say N4OKX, W6CF and XYL are
> strong possibilities.  Anything I should bring?
> 73,
> 
> Tim Totten, KJ4VH     kj4vh at iglou.com
> KJ4VH Home Page - http://www.iglou.com/kj4vh/