[K3] [Elecraft] Questions about ARRL review

[Jack Smith]

Not all disk caps are the same - it depends on the dielectric. NP0 types 
are pretty good but the high K formulations, Z5U and Y5U are not so good.

I've written about capacitance versus voltage and harmonic distortion in 
various dielectrics at 
http://www.cliftonlaboratories.com/capacitor_voltage_change.htm

Will revisit this in the future with some RF data.

Jack K8ZOA


Ignacy wrote:
>  > disc ceramic capacitors - bad for IMD!
>
> If there is a problem with those capacitors at 30dbm, I am wondering about
> the power amps especially SS where ceramic caps are used extensively. Seems
> nearly all amp's IMD cam generated in those caps. Am I missing something?
>
> Ignacy
>