[AMPS] 8877 amp failure

[Alek Petkovic]

At 05:34 PM 03-01-00 -0500, Steve wrote:

>Thanks Phil,
>
>I've already mounted them on a piece of plexiglas, so that should not
>happen again.
>
>It was not a nice experience.  Happened while running on 40 during the WPX
>CW contest.  Lost my composure and  lost my frequency.
>
>73 de Steve, NR4M

It is common to lose a large load into your pants as well when that sort of 
thing happens

Alek, VK6APK


>At 04:59 PM 1/3/00 , Phil Clements wrote:
> >
> >> The original problem was that the HV took a short cut thru the side of a
> >> Millen HV connector to the chassis.  My B+ surge resistor did it's job but
> >> lost it's life in the process.  Apparently, this is when the zener went
>also.
> >
> >There are two types of Millen HV connector users when dealing with < 2500v.
> >Those who have had a big bang, and those who will do so soon.
> >
> >I use them all the time here with voltages < 6000 by taking two precautions:
> >
> >1. Never use the yellow ones..they are not made of the same stuff as the
> >    black or red ones.
> >
> >2. Cut the middle hole over-sized; 1/16 inch less diameter than the width
> >     of the chassis connector. Fabricate a sheet of teflon or plexiglass 
> with
> >     three holes in it to match the connector and install between the
>connector
> >     and the chassis.
> >
> >
> >Works good, lasts a long time!
> >
> >(((73)))
> >Phil, K5PC
> >
> >
> >
> >
> >--
> >FAQ on WWW:               http://www.contesting.com/ampsfaq.html
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>
>---------------------------------------------
>Steve Bookout, NR4M (ex NJ4F)
>Rapidan Data Systems
>
>'DX4WIN...The way logging programs should be!'
>Free demo at http://www.erols.com/pvander
>
>--
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