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Re: [Amps] MFJ products

To: amps@contesting.com
Subject: Re: [Amps] MFJ products
From: Vic K2VCO <k2vco.vic@gmail.com>
Date: Tue, 11 Sep 2012 07:56:53 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
In order to understand MFJ products, you just need to know that many of them are rated in "MFJ Watts."

An MFJ Watt is about half a regular watt. So a "1500 watt" MFJ tuner is good
for about 750 normal watts.

They are also living somewhat in the past. In the Old Days when US hams were 
limited to 1
kW DC input to their finals, a good class-C amplifier might make about 750 
watts output.
That was the legal limit. And that is about what their "legal limit" products 
are capable of.

Having said that, Ameritron amplifiers -- at least the tube amplifiers -- are good buys and deliver as promised. They are not top quality, but you get what you pay for.

On 9/11/2012 1:07 AM, David Kirkby wrote:

On another issue with MFJ items, someone else mentioned in the thread something 
about a
coil wound with wire at least two gauges thinner than he would have used, and 
several
have mentioned the use of overrated or marginally related components. A friend 
of mine
has a 1 kW ATU they sell. He is very careful about his equipment and treats it 
well. He
has a linear, but it only puts out about 350 W PEP. The legal limit here in the 
UK is
only 400 W PEP, but I know his linear is not capable of 400 W - or at leasat he 
never
pushes it to 400 W. But despite running an ATU at 35% of its maximum power 
rating,
something has burnt out in there. I forget what it is, but it has resulted in 
him
turning a shaft around on one of the tuning controls, as something has gone 
wrong in
there, which meant he got RF burns on the tuning control.


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