Re: RGB card for IIe

[Knut Roll-Lund <kr-lund@nogarbage.online.no>]

Bryan Parkoff wrote:

> "Martin Doherty" wrote in message 
>
> > Knut Roll-Lund wrote:
> >
> > > Hi,
> > >
> > > I'm considering to buy an RGB/80-columns card for my IIe.
> > >
> > > Will a card from USA would work for me in my European Apple IIe?
> > >
> > > I think of the frequencies... My IIe is for 50Hz power and outputs a 50Hz 
> > > signal for video. Americans use 60Hz for power and video. So would an RGB 
> > > card from US output 60Hz video in my machine which would be incompatible 
> > > with a European monitor?
> > >
> > > If this is a problem, would it be possible to modify the card to 50Hz (by 
> > > changing a crystal or something like that)?
> > >
> > > Knut
> >
> > When you say "European monitor", which monitor are you intending to use?
> >
> > Do you have an AppleColor 100 RGB monitor (model A9M0308)?  As far as I 
> > know, this is the only monitor that will work with the Apple //e Extended 
> > 80-column text/AppleColor adaptor card. This monitor uses digital TTL RGB 
> > signals - you won't get good results if you try to use an analog RGB 
> > monitor like the one sold for the IIGS.
> >
> > Unfortunately I don't have the manual for this monitor, but the label on 
> > the back says "Model A9M0308, 115 VAC, 60Hz, 1 Amps"
>
>     Are you sure that AppleColor 100 RGB monitor (model A9M0308) will work 
> Apple //e's RGB card with 80 column?  You may know that there are some CGA 
> Mitsubishi monitor probably work with RGB card, but they can't be certain if 
> it is TTL or analog signal.

I'll try to get a proper AppleColor 100 RGB eventually.

I do realize that this is a digital RGB signals.

I have two monitors that possibly can be used. One is an IBM CGA monitor 
and the other is an Olivetti M24 monitor.

Knut