Re: G05 805 Problem

From: Kevin Moore <talon.k_at_gmail.com>
Date: Fri Sep 02 2011 - 23:59:41 EDT

Looks like your tube has a leak. Seen that before on an amp tube that
vented.
On Sep 2, 2011 10:56 PM, <akswanson@ntelos.net> wrote:
>
>
>
>
> Heres a pic of the plasma:
>
>
> http://www.flickr.com/photos/mcandrewsnd/6108115704/in/photostream/
>
>
>
>
>
> Also.. someone posted the voltages that are supposed to be present for
> the tube:
>
>
> Correct
> Voltages
> Mine
>
>
> Pin 1 - Filament GND
>
> Pin 2 - G1
> 30V
> 34v
>
> Pin 3 - G2
> 410V
> 202v
>
> Pin 4 - G3
> 300V
> 127v
>
> Pin 5 -
>
> Pin 6 -
>
> Pin 7 - K
> 94.5V
> 20v
>
> Pin 8 - Filament
> B+
> 6.3v
>
>
>
>
>
>
>
> my voltages are about 1/2 what they should be.. Im going to yank the HV
> and have a look.. Does this seem like a flyback issue?
>
>
>
>
>
> Thanks,
>
>
> Andrew
>
>
>
>
>
>
>
> > Ken Sumrall wrote:
>
> >> Can you see the getter on the inside of the CRT? If it&#39;s not
> silvery
>
> >> but
>
> >> rather powdery (or has a powdery ring around the edge) then
> it&#39;s most
>
> >> certainly
>
> >> leaking.
>
> >>
>
> >> Disclaimer: I&#39;ve never used a G05-805 monitor, so I have no
> idea if
>
> >> the getter
>
> >> is even visible on that CRT.
>
> >>
>
> >> ___
>
> >> Ken
>
> >>
>
> > They aren&#39;t always visible in picture tubes so if people
> don&#39;t know what
>
> > to look for it is difficult to describe - however a bad getter is
>
> > usually showing a white powdery look to it.
>
> >
>
> > http://en.wikipedia.org/wiki/Getter
>
> >
>
> > John :-#)#
>
> >>
>
> >> On 08/29/11 12:54, John Robertson wrote:
>
> >>> akswanson@ntelos.net wrote:
>
> >>>>
>
> >>>> Hi, I have a Omega Race Cocktail with a G05-805 monitor,
> that doesnt
>
> >>>> appear to
>
> >>>> have HV. I get a purple plasma in the neck..Its this an
> indication
>
> >>>> of a neck
>
> >>>> short? I rebuilt both the Deflection and HV boards.
>
> >>>>
>
> >>> Purple plasma is an indication of air leakage into the
> tube...not a
>
> >>> good thing!
>
> >>>
>
> >>> I suspect your tube is shot... picture/video of this would
> help decide.
>
> >>>
>
> >>> John :-#(#
>
> >>>
>
> >>
>
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>
> >>
>
> >> ** Unsubscribe, subscribe, or view the archives at
>
> >> http://www.vectorlist.org
>
> >> ** Please direct other questions, comments, or problems to
>
> >> chris@westnet.com
>
> >>
>
> >
>
> >
>
> > --
>
> > John&#39;s Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T
> 3C9
>
> > Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
>
> > www.flippers.com
>
> > "Old pinballers never die, they just flip out"
>
> >
>
> >
>
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>
> > ** Unsubscribe, subscribe, or view the archives at
>
> > http://www.vectorlist.org
>
> > ** Please direct other questions, comments, or problems to
>
> > chris@westnet.com
>
> >
>

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Received on Fri Sep 2 23:59:43 2011

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