RE: WG 25K5501 (4 player Demolition Derby) - Standard or Medium res?

>From what I remember from the game, it was not med-res looking. If you
have a frequency counter you could measure the frequency coming out of
the horizontal and vertical drive IC's. If they are off standard 15Khz
and 60Hz, then it is scanning higher. Also, look at the tube number and
find the specs on it that would be the definitive answer I would think.

> -----Original Message-----
> From: owner-rasterlist@synthcom.com
> [mailto:owner-rasterlist@synthcom.com] On Behalf Of Joe Magiera
> Sent: Wednesday, February 13, 2002 3:48 PM
> To: rasterlist@synthcom.com
> Subject: RASTER: WG 25K5501 (4 player Demolition Derby) -
> Standard or Medium res?
>
>
> Hi all,
>
> Very inactive list, but I'm hoping someone could shed some light on
> this. I have a Bally/Midway 4-player Demolition Derby "island" stand
> around game.
>
> The monitor in it is a Wells Gardner 25K5501 monitor. It's dead. Can
> anyone say for sure if this is a medium or standard res
> monitor? I live
> in the Chicago area and actually took it to Wells Gardner and they
> didn't have records of that monitor and couldn't tell me.
> (Then again,
> they definitely didn't seem to want to bother much to help me
> either).
> About the only thing they did tell me is that it was based on and an
> off-shoot of a 4900 monitor (which isn't medium res). But
> they wouldn't
> rule out that this was a medium res.
>
> -Does anyone know for sure what monitor this game used?
> -Is there anyway to tell with some kind of measurement with a
> multimeter
> (although I doubt that would help since it's pretty dead).
> -Does anyone have the manual for this monitor?
>
> I know it's easy to say it's medium res as the Atari System 2
> games used
> the WG25K5512, which are medium res, but the 2 player Demo Derby
> definitely was a standard res.
>
> Please help!
>
> Joe
> joemagiera@ameritech.com
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Received on Wed Feb 13 15:32:33 2002