[Heathkit] How about the SB-220?

[Carl]

Many were part of the debunking, JI simply tries to take the credit but he 
has also been debunked by many in several other areas and has left any forum 
where he was challenged.

My part in the Measures discussions was bringing out the real reason for 
SB-220 switch arcing and the cap across the switch cure which was innovated 
in the NCL-2000 design in 1963 and I was on the design team. Im sure it 
wasnt a virgin idea.

I also debunked JI's and a few cronies who wouldnt accept the use of 
nichrome for treating real parasitics. My own experience again goes to 
National when a 1KW jeep mounted Army amp using a 4CV1000A7 would not tame. 
The oldest engineer on the project ordered a small roll of fairly large 
gauge nichrome and that did it.

Later on I learned that its use in amps went back to the late 20's. Some 
were not happy to hear that.

It is also mentioned in QST of the 30's.

Carl
KM1H



----- Original Message ----- 
From: "Jim Shorney" <jshorney at inebraska.com>
To: ""Heathkit Reflector"" <heathkit at mailman.qth.net>
Sent: Saturday, August 22, 2009 2:05 PM
Subject: Re: [Heathkit] How about the SB-220?


> On Sat, 22 Aug 2009 12:57:58 -0400, Carl wrote:
>
>>The Measures thing got real nasty for about for 10 years on another forum.
>>Just about every amplifier company chief engineer, Eimac engineers, EE
>>Department university professors, and others rebutted everything he said
>>about parasitics.
>
>
> The Measures stuff was debunked quite thoroughly with real science by W8JI
> (Carl, I'm sure you know this, but the other readers may not). A Google 
> search
> on W8JI will turn up plenty of information.
>
> 73
>
> -Jim
>
> --
> Ham Radio NU0C
> Lincoln, Nebraska, U.S.S.A.
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>
> "Give a man a URL, and he will learn for an hour; teach him to Google, and 
> he will learn for a lifetime."
>
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>
>
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