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Fwd: [AMPS] Globar Resistors

To: <amps@contesting.com>
Subject: Fwd: [AMPS] Globar Resistors
From: 2@vc.net (measures)
Date: Sat, 4 Mar 2000 20:51:11 -0700
>At 07:36 PM 3/4/00 -0700, you wrote:
>> >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
>
>Rich,
>I wouldn't dream of using a six inch globar.  Mine were type CX and TWO 
>inches long.
>
What was the inductance?
thanks
>
later, Marv.
>
>
>

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