> A number of years ago, I had a Heath SB-220 that exhibited fireworks. I
> installed nichrome parasitic suppressors and installed the other things
> recommended by Rich's original Ham Radio articles. It still had
> fireworks. His magic did not give me the magical shield I wanted.
>
> I concluded that the magical shield did not work because I was not a
> believer. Simply stated, I was not worthy to have it work.
>
> Once I realized I had no magical protection, I went back to work to fix
> the original problem, and I must admit the science of working through a
> problem and making measurements, coming up with probable causes and cures
> and recording results was a very satisfying part of ham radio.
>
> For me, installing a generic parasitic suppressor into an amplifier that
> has worked reliably for a period of years is an admission of defeat. It
> is an admission that I am not scientific enough to deserve the Extra Class
> ticket that I hold.
>
> 73, Colin K7FM
I've removed dozens of kits for people over the years, after they
found the same problems recurred.
While most of his mods are harmless or helpful, some are actually
harmful and can ruin tubes.
73, Tom W8JI
w8ji@contesting.com
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