On 2010-07-16 00:29, Alek Petkovic wrote:
>
> OK. Just a simple question from down under.
>
> Who, among all the subscribers on this list, knows how to do that?
>
> I'm not talking about cut and try methods. I'm
> talking about mathematics and tube spec sheets
> and parasitic frequencies etc etc. I have NEVER
> seen anything, anywhere, which gives the designer
> or builder of an amplifier, the tools or formulas to work this stuff out.
>
> Time and time again, we hear this Nichrome stuff
> raised and time and time again, the two camps
> slug it out and time and time again, nobody wins.
>
> I don't wish to align with any side here. My question is genuine.
>
> How would I design a parasitic suppressor from
> scratch? What formulas would I use to calculate
> the L, R for a particular tube or a particular rf deck layout?
>
> Don't tell me stuff like "four turns and 50 ohms
> worked for me." I am talking science and that
> sort of approach is NOT scientific. Gimme calculations. Somebody must know.
>
> 73 and thanks,
> Alek. VK6APK
>
Alek, good question. I been asking this myself many times.
I have never seen anything in any book or publication during
the 45 years I been into radio.
Always had to go for the "this worked for me" stuff.
73 Jim SM2EKM
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