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[AMPS] IRC 0.82 Ohm for L7

To: <amps@contesting.com>
Subject: [AMPS] IRC 0.82 Ohm for L7
From: 2@vc.net (measures)
Date: Fri, 19 May 2000 04:54:52 -0700
>Right Jaime, and furthermore when installing a resistor in such service it
>should be placed so that there is tension on the leads that will tend to
>separate it when it goes, 

?  If the glitch resistor can not survive a hv short to ground without  
damage,  a more capable resistor is imperative.  

> rather than to compress it.  There is a name for
>that and even a schematic symbol, but I can't recall it right now.
>
>Geo>K0FF
>-----Original Message-----
>From: measures <2@vc.net>
>To: Jaime P.Ullívarri <EA6NB1@teleline.es>; AMPS <amps@contesting.com>
To: <amps@contesting.com>
>Date: Thursday, May 18, 2000 8:12 PM
>Subject: Re: [AMPS] IRC 0.82 Ohm for L7
>
>
>>
>>>
>>>Hi all,
>>>I need some help, I have to replace R12 resistor from L7 PS, this resistor
>>>is at the HV output to protects the PS diodes at the event of a short
>>>circuit. At the L7 manual says : replace only with "IRC 0.82 Ohm 2 Watt
>type
>>>BWH resistor" only. I don't know what type it is and I can not find any
>>>similar here and neither at the Drake's Parts Web
>>>http://www.rldrake.com/tech/parts/partshtml/partslist.html
>>>
>>>May I use a common resistor or other easy to find here, or just replace it
>>>for a Fuse?.
>>
>>You need to have a resistor to limit peak fault current that does not
>>explode under fault conditions.  .  I would use a glass-coated 10-ohm,
>>10w.unit.    A resistor that explodes with a metal-vapour arc does not do
>>the job.  For more than 2800v, I put two in series.  Special
>>energy-absorbing resistors are more durable but the cost is about 10db
>>more.
>>>
>>cheers,  Jaime EA6NB
>>>
>>>
>>>--
>>>FAQ on WWW:               http://www.contesting.com/ampsfaq.html
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>>>
>>>
>>
>>
>>-  Rich..., 805.386.3734, www.vcnet.com/measures.
>>end
>>
>>
>>--
>>FAQ on WWW:               http://www.contesting.com/ampsfaq.html
>>Submissions:              amps@contesting.com
>>Administrative requests:  amps-REQUEST@contesting.com
>>Problems:                 owner-amps@contesting.com
>>Search:                   http://www.contesting.com/km9p/search.htm
>>
>>
>
>


-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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