At 04:53 PM 12/20/2003, you wrote:
Actually if you want to build a high power high level homebrew
transmitter, there is no need to spend megabucks to purchase a custom
built mod transformer. There are plenty of tube type broadcast
transmitters sitting around all over the country that have bee
My PDM-AM rig uses a single 833A as the modulator...
-Larry/NE1S
Geoff/W5OMR wrote:
>
> Subject: [AMRadio] AM from what I have in the junk box
>
> > Anyone have any nice schematics to construct a AM transmitter from some
> > 4-125As or 4-65As that I have available?? Also have a new 833a that
>
> ... If one needs an 800 watt amplifier to run
> 100 watts AM, then how does a Viking with 3
> small 6146s run 125 watts AM?
What do you mean by an 800-watt amplifier? At a minimum, you need a linear
amplifier with only 400 watts peak output capability to run 100 watts steady
carrier AM @
Excuse this "spam" but I have some "Swampland in Arizona" that is available.
It is listed on Eham Classifieds under "Ham Homes".
http://www.eham.net/classifieds/detail/117028
6.8 acres on a hill with gorgeous scenery, beverage antennas and
grandfathered towers.
73 & Merry Xmas to all,
DE
Damon, W7M
Paul, WA3GFZ, wrote:
> ... If one needs an 800 watt amplifier to run
> 100 watts AM, then how does a Viking with 3
> small 6146s run 125 watts AM?
It's due to the difference in efficiency between
a non-linear, plate-modulated, Class-C amplifier
and a linear, Class-AB2 amplifier. A Class-C
ampl
Glad I have my hip waders on :)
-- Original Message ---
From: RoadKing <[EMAIL PROTECTED]>
To: amradio@mailman.qth.net
Sent: Sat, 20 Dec 2003 11:49:43 -0600
Subject: [AMRadio] Swampland in Arizona
> Hey Jim!
>
> As the "Owner" of some of the most exquisite Swampland in Arizona, I
Hey guys,
I got a novel idea. Lets fire up on 7290 AM, and get off the internet.
Going to turn on the filaments momentarily...
Jim
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of John Coleman, ARS
WA5BXO
Sent: Saturday, December 20, 2003 12:
I don't know Geoff, I think the real, universal, and best part, for a
loss of better words, might be lost the lengthy, but I'm sure exquisite,
explanation.
Tony has my vote as the best in this category.
BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behal
I spewed my drink all over the monitor when on Saturday 20 December 2003
12:07, John Coleman, ARS WA5BXO said (and I am -not- making this up!)::
> May I have the profound pleasure of quoting this some day?
>
> BXO
I imagine Tony wouldn't mind you quoting it, all you wanted.
I think a prerequisit
May I have the profound pleasure of quoting this some day?
BXO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of RoadKing
Sent: Saturday, December 20, 2003 11:50 AM
To: amradio@mailman.qth.net
Subject: [AMRadio] Swampland in Arizona
Hey Jim!
As the "Owner
Thanks to all for the information. The way everyone explained it makes
perfect sense. Besides putting up the better antenna, I think the better
way is to get a viking 2 or similar radio and get the 125 watts without
having to purchase the linear.
73s and thanks again,
Paul
From: "John Col
Hey Jim!
As the "Owner" of some of the most exquisite Swampland in Arizona, I was
very happy to see that you TOO have the deed/ownership to some property in
what is certain to become some of the most sought after "Retirement"
hideaways in the entire state. My property was acquired one tract a
Paul:
Others have answered your question about Class C RF amps vs. Class AB
linears.
You can certainly use your Ranger to drive an amp like an SB220 for
fully modulated AM at ~400watts carrier. Enough to make you a 'big
gun'.
BUT, you'll have to either modify the Ranger to permit reduction of it
SORRY - Typo and writing Corrections
I need a proof reader HIH. There are probably more errors!!!
Here it is again.
The Ranger, Viking, DX100 and the 32V3, etc. rigs are running Class C
finals using plate modulation. They do not have an RF linear amplifier
in them. Being a new comer you may no
The Ranger, Viking, DX100 and the 32V3, etc. rigs are running Class C
finals using plate modulation. They do not have an RF linear amplifier
in them. Being a new comer you may not be familiar with the pros and
cons of linear verses class C. I will try to stir up some interest here
in maybe home
Paul,
Linear AM as the others have described is not very efficient, but it is
often convenient. For me, especially in the winter, it is efficient. Instead
of heating the shack with a 1500 watt resistance heater, I can talk on the
radio, and heat my shack at the same time with my li
Paul,
I believe, increasing your power from a 45 watt Ranger to 180 watts, is
just one "S" unit on most receivers.
Put your money into a good antenna.
bob...w2ami
- Original Message -
From: "Paul Sokoloff" <[EMAIL PROTECTED]>
To:
Sent: Friday, December 19, 2003 10:30 PM
Subject: Re: [AMR
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