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[Amps] Alpha 86

To: <amps@contesting.com>
Subject: [Amps] Alpha 86
From: 2 at vc.net (rlm)
Date: Wed Mar 5 19:29:34 2003
Corona in a amplifier with a 3000V anode supply?

>I thankyou Alek for that information.  I don't think I'll pursue it 
>anymore.  The amp I have is 15 plus years old with the original 
>3-500Z tubes and it still puts out 800 watts PLUS, with no sign of 
>arcing, at least not yet.  I have never heard of corona washers 
>before belive it or not.  I still learn something everyday, and that 
>is good.
>
>Dale J. K9VUJ
>
>
>>You don't want a dirty corona, do you?
>>
>>You gotta have a washer.
>>
>>It is a non conductive washer that performs the same task as the 
>>ribs on your spark plugs our power line insulators.  I believe it 
>>goes on the solder tag of the switch prior to soldering the wire to 
>>it. It increases the distance a potential arc has to travel, thus 
>>making it less likely to occur.
>>
>>73, Alek.
>>VK6APK
>>
>>At 03:48 PM 5/03/2003 -0600, dj2001@mn.rr.com wrote:
>>
>>>What is a corona washer?  Do I need or want one on my AL80A bandswitch?
>>>
>>>Dale K9VUJ
>>>
>>>>Actually, I already have.  I've seen the results of the 
>>>>corona-caused breakdown
>>>>that you refer to there.  I repaired an SB-1000 with a burned 160-meter 
tune
>>>>padder contact. This contact was connected to the hot side of the 
>>>>PI-net, and
>>>>arced to ground across the wafer.  The moving contact was undamaged, 
proving
>>>>that it had not been hot-switched.  I put a corona washer on the 
replacement
>>>>contact, and I had no further problems.
>>>>
>>>>73
>>>>Vic K2VCO
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>>>
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>>
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>
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-  R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K, 
www.vcnet.com/measures.  
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