[Amps] Schematics  for 4CX250B GG HF amplifier

donroden at hiwaay.net donroden at hiwaay.net
Sun Aug 19 08:01:02 PDT 2012


LOL !!  Yep, we were too busy growing our hair and wearing bellbottoms  
to worry
about IMD. Most receivers intercept points weren't good enough to  
distinguish between a clean amp and a dirty one anyway.

As I said, I would build it differently today.

Don W4DNR


Quoting Carl <km1h at jeremy.mv.com>:

> I mean today Don, very few gave much thought to IMD in the 70's.
>
> It should be possible to get at least mid -30's with a quad of well  
> matched GG 4CX250's with attention to detail. Even better with the  
> premium versions.
>
> Carl
>
>
> ----- Original Message ----- From: <donroden at hiwaay.net>
> To: "Carl" <km1h at jeremy.mv.com>
> Cc: <amps at contesting.com>
> Sent: Saturday, August 18, 2012 8:11 PM
> Subject: Re: [Amps] Schematics  for 4CX250B GG HF amplifier
>
>
>> Quoting Carl <km1h at jeremy.mv.com>:
>>> Id love to see an IMD plot.
>>>> Carl
>>> KM1H
>>
>>
>> It was the seventies Carl.........
>> We were so poor that we couldn't afford IMD.
>>
>> Don W4DNR
>>
>>
>> -----
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>
>
>



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