Re: G05 tube ground question

Could do that, I suppose. Without the outside of the tube grounded the
high voltage would be unfiltered and would vary all over the place.
That could screw up focusing.

kegowland@cs.com wrote:
>
> If the DAG is not attached correctly or not present, would this cause an effect of the picture being out of focus? I have two WG 6100's that display an image but after a few moments the image is fuzzy, like looking through a frosted window. I tried different HV and deflection boards and get the same result.
>
> Kirby
>
> John Robertson <pinball@telus.net> wrote:
>
> >The 'aquadag' coating on the outside of the picture tube must be connected
> >to the monitor chassis common for the tube to charge up correctly...it is
> >only a giant glass capacitor after all, a few ufd at 20Kv...you can use a
> >spring if you like, but it must make a good contact to the tube coating and
> >cover a few square inches. A better solution is to get a piece of braided
> >wire and run it across the rear of the tube with a spring to keep the braid
> >from touching the yoke. Then solder a jumper wire that can be either
> >soldered or screwed to the chassis common.
> >
> >John :-#)#
> >
> >At 08:08 PM 02/05/2002 -0400, Curtis H. Wilbar Jr. wrote:
> >
> >
> >>Had this embedded in a longer post... so for those that have seen it
> >>sorry for the duplication, however I think some people may not have seen
> >>it because it was embedded in a longer post...
> >>
> >>My Electrohome G05-801 (Asteroids) metal "strap" used for groudning
> >>the monitor tube is rotted off (found a piece of it in the bottom of the
> >>game).
> >>I don't see a wire floating around, but I assume that this strap is used
> >>for grounding the back coating on the monitor tube.
> >>
> >>What are the issues with this not being grounded...
> >>I've seen some monitors (like amplifone) use a spring to ground that coating
> >>to the monitor frame. Would that be one way of rectifying the rotted
> >>off strap ?
> >>
> >>Thanks in advance,
> >>
> >> -- Curt
> >>
> >>
> >>
> >>---------------------------------------------------------------------------
> >>** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
> >>** message body to vectorlist-request@synthcom.com. Please direct other
> >>** questions, comments, or problems to neil@synthcom.com.
> >
> >---------------------------------------------------------------------------
> >** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
> >** message body to vectorlist-request@synthcom.com. Please direct other
> >** questions, comments, or problems to neil@synthcom.com.
> >
> ---------------------------------------------------------------------------
> ** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
> ** message body to vectorlist-request@synthcom.com. Please direct other
> ** questions, comments, or problems to neil@synthcom.com.

---------------------------------------------------------------------------
** To UNSUBSCRIBE from vectorlist, send a message with "UNSUBSCRIBE" in the
** message body to vectorlist-request@synthcom.com. Please direct other
** questions, comments, or problems to neil@synthcom.com.
Received on Fri May 3 00:44:52 2002