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Re: [Amps] where to begin

To: amps@contesting.com
Subject: Re: [Amps] where to begin
From: Vic K2VCO <k2vco.vic@gmail.com>
Date: Thu, 07 Nov 2013 08:37:31 -0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I found this article
<http://www.granta.g4axx.com/linear.php3>
provides extremely helpful information about designing and constructing a 
tetrode amplifier.

On 11/7/2013 7:47 AM, Carl wrote:
While the GU91B ( made up as a never registered 4CX1600B for the US market) is 
long gone
the HB circuit can easily be adapted to the 4CX1500B. Or just use the various 
earlier
4CX1000A/4CX1500B circuts in the older ARRL and West Coast handbooks.

Carl
KM1H


----- Original Message ----- From: "Roger (K8RI)" <k8ri@rogerhalstead.com>
To: <amps@contesting.com>
Sent: Wednesday, November 06, 2013 10:24 PM
Subject: Re: [Amps] where to begin


On 11/6/2013 8:17 PM, Bill Turner wrote:
ORIGINAL MESSAGE:          (may be snipped)

On Wed, 6 Nov 2013 21:31:26 -0200, you wrote:

so, do you have any point, link, etc where I can learn about *Design
with valves* ???

REPLY:

The ARRL Handbook is a good place to start. Nearly everything you need is in
there and when you run across something that's not clear, just ask a
question here. Recent editions are usually available on eBay or amazon.com.
Don't get one more than about three years old.

If you also get it on disk, it turns searching for a particular topic, 
reference, quote,
or author from minutes or hours into a few seconds.

Although some of the older ones may have tubes/valves covered in more detail.

The theory is good, but many of the circuit designs may have a flaw or two.

Newer books will have newer material although some of the out dated stuff gets 
dropped.
OTOH they have had a 4CX1600B amp in there for quite a few years. It's a nice 
amp but
the tube was dropped from production years ago.

They seem to change very little from year to year, but new stuff does get added 
so,
normally the latest is best and they have been on DVD for quite a few years. 
You can
install the book, or just copy the files and use a link to the beginning to 
start it or
click on setup application.

There is an extensive section on Vacuum Tube Basics with the rest of the chapter
evolving into amplifier design.

73 and good luck,

Roger (K8RI)


Good luck and have fun!

73, Bill W6WRT
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--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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