Parasitic supressors
Murray Leshner
murrayatwork at HOTMAIL.COM
Wed Jul 9 14:08:31 EDT 2003
Metal Film resistors are usually spiral cut with a laser, making them more
inductive than carbon film. This may not be a huge problem, but it may shift
the resonance.
You might be interested in looking up Rich Measures' AG6K's articles on
alternative parasitic suppressors that take a closer look at what problems
occur and what can be done to prevent them. He does use an alternate
resistor - I think a 'flameproof' resistor that is probably some sort of
film resistor, but at least sme analysis of the redesign has been done
instead of changing component type and hoping it's OK.
Murray
>From: oh8jep <apo at KOTINET.COM>
>Reply-To: oh8jep <apo at kotinet.com>
>To: HEATH at LISTSERV.TEMPE.GOV
>Subject: Parasitic supressors
>Date: Wed, 9 Jul 2003 12:47:47 +0300
>
>Hello!
>
>Has anyone used succesfully all over filmed metal film resistors as
>parasitic supressors without future problems?
>Mass carbon resistors (new) are very under the stones nowadays to find.
>
>73's
>
>Aatos OH8JEP
>
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