On Mon, 25 May 98 10:19:02 -0500 Jon Ogden <jono@webspun.com> writes:
>Tom Rauch has given me some good possible suggestions for the
>suppressors. Perhaps I just need more inductance and a heftier R or
>something. Anyone else care to chip in an idea?
Been away on a long weekend so hope I'm not duplicating here.
I seem to recollect suggesting the new 5W metal oxide resistors from
Mouser more than once Jon.
They are cheap and you can buy several values to experiment.
Are they inductive....not that I can measure on either a hand held LCR
meter or an old Tektronix 130 LC Meter. My HP-4271B has died. In any
event they seem to function fine in suppressor circuits up thru 50MHz.
And...yes, not all 2W "carbons" are non-inductive. I bought several that
went bang on me. Turns out they used what appears to be resistance wire
wrapped around a small carbon core. The only true carbons that I know of
are the Allen-Bradley ones that carry the Mil-Spec designation.
BTW, something is really screwed up in your amp for the Load cap to act
that way. And yes it is possible to blow that B&W switch, happened to
many and B&W used to sell replacement contacts.
I would suggest removing all RF components and then carefully clean all
connections, particularly grounds. Do not rely on a panel to be the
primary ground return to the chassis either.
Be careful about dissimilar metals and NEVER use braid at RF.
73 Carl KM1H
>
>73,
>
>Jon
>KE9NA
>
>
>
>
>-------------------------------------
>Jon Ogden
>KE9NA
>
>http://www.qsl.net/ke9na
>
>
>"A life lived in fear is a life half lived."
>
>
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