>Dan Hearn, N5AR wrote:
>
>>I have been using these resistors (Globars) in parasitic suppressors for many
>>years . Has anyone ever had one of these fail or change value without a
>>change in external appearance?
>Like you Dan, I've used the small Globars for years for parasitic
>suppressors and now, more recently for glitch protection and never found
>any problem whatsoever. I also saw them in use for some commercial
>multi-kW amps, by Create Eng., with the same units.
A 6" long ''non-inductive'' Globar resistor has over 100nH. One
disadvantage to Globars is that the length to diameter ratio tends to be
too high - typically about 6 or more to one. The L/D ratio for a vhf
suppressor resistor needs to be low - otherwise the desired
stagger-tuning effect is not obtained. Cesiwid/Globar/Kanthal can make
such resistors on special orders of 1k minimum units.
>
later, Marv
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