Youre getting close Don. Neutralization is part of the issue with some tubes
but with others the parasitic frequency can be found with little fuss. Its
been published for many tubes.
Cant dawdle, heading for Canada, be back later.
Carl
KM1H
----- Original Message -----
From: <donroden@hiwaay.net>
To: <amps@contesting.com>
Sent: Friday, July 30, 2010 12:34 AM
Subject: Re: [Amps] choke the question
>I love this Forum !!
> *IF* you knew the parasitic frequency,
>
> ( 150mhz mentioned for a pair of 3-500s)
>
> Couldn't you make to make a fairly broadband neutralization circuit ?
>
> Feed 150mhz into the input ( force the issue ) and null the output with
> the
> neutralization circuit ?
>
> Maybe manufacturers use simple plate circuit supressors because ( as
> mentioned earlier...higher impedance ) or could it be manufacturing
> and adjusting costs would add more than the cheaper and down and dirty
> coil/resistor combination ?
>
> Don WA4NPL
>
>
>
>
> Quoting Charles Harpole <k4vud@hotmail.com>:
>
>>
>> Is it possible to choke this line of discussion?
>>
>> Charles Harpole k4vud@hotmail.com
>
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