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Re: Australian AIIE 80Col/64k Memory Expansion and Video card?



Sean McNamara <sean@macassist.com.au> wrote in message news:<sean-78E8C6.22222406112004@news-server.bigpond.net.au>...
> 
> it looks just like an extra-long "AIIE 80Col/64k Memory Expansion" card
> with extra bits, including a composite output and an extra card slot
> interface (on Aus machines, the AUX slot was in line with Slot 3, and this
> card plugs into both).

I think your description is dead on - in the current form it's nothing
more than a memory expansion card (and thus giving 80 columns.).
 
> It certainly works as an 80 column card, but nothing seems to be output 
> from the composite output.
> 
> Does anyone know anything about this card and what the video signal is 
> (PAL RF?) - any info gratefully accepted.

I don't see any major video electronics on this card except L1, L2
which probably connect to the UX9-connector - maybe some kind of
filter for the video output.

The most important question for me is: What is on that mystery card
that connects to UX9? Maybe its a socket for an RF modulator?

Could you photograph the back side of the circuit board? Maybe we can
check, if the video out has a connection somewhere.

bye
Marcus