Apple II

Differences between Disk II models?

Submitted by Link on July 27, 2012 - 8:53am

Can anyone enlighten me on the internal differences between the older Disk II's (rainbow cable) and the newer ones (grey cable)?

The mechanisms sound different when in operation... and I've found, over the years, that the older ones seem to be both more reliable and better at extracting data from flaky disks.

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Apple II

Apple II graphic fault

Submitted by mjnurney on July 26, 2012 - 3:26pm

n anyone tell me why my Pal Apple II europlus and not showing a prompt but a continual line down the centre of the screen in blocks?

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Apple II

.SDK image to floppy

Submitted by javster on July 25, 2012 - 1:22pm

I have recently acquired a unidisk unit for my //c (Thanks Mutant pie!) and while playing with it, found some disk images with lots of apps in, ready to be copied to a3.5 inch disk.

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Apple II

Original Apple II prototyping card manual posted

Submitted by Neon Forests on July 23, 2012 - 2:00am

Thought someone might want this. Enjoy...

http://www.synthfool.com/apple2/Apple_Prototyping_Card_Manual.pdf

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Apple II

Euroapple PAL/SECAM Color Card

Submitted by AppleJoe on July 21, 2012 - 6:19pm

Euroapple PAL/SECAM Color Card information wanted, schematic diagram in special.

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Apple II

A Matter of RAM

Submitted by gsmcten on July 21, 2012 - 10:41am

I am not sure if this subject has been touched upon or not, but as I was driving back home from the store this morning (pondering the universe as we know it), I wondered why there is a limit on the amount of RAM accessable on an Apple II?

I know that somewhere I have read that the IIgs can only access 8 Meg of RAM.
Most RAM cards are 256 K to 1 Meg, with the exception of 1 AE Card that has 1 Meg Main RAM with a daughterboard of another 1 Meg.

Apple II users have made great strides the last 15 years with Mass Storage, Speed, and many other areas, except the RAM Limit.

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Apple II

Apple II Replica

Submitted by swinsor on July 20, 2012 - 3:51am

With all the brilliant Apple I replicas there are I got wondering, how possible would an Apple ][ replica be? If we could get permission from Apple (rather then make an illegal clone like others did back in the day) who would be interested in such a hacking project? I know that it would be hard, no doubt about that! But surely something like this would be fun for those interested in an Apple ][ clone and that if people wanted it they would work for it? What do you guys here think?

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Apple II

OpenEmulator 1.0.3 just released.

Submitted by mressl on July 17, 2012 - 1:26am

1.0.3 is available as of now at http://www.openemulator.org . Here is a feature update list:

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Apple II

Apple //e Platinum keyboard issue

Submitted by presence on July 16, 2012 - 9:16pm

Hey guys,

I am an old school apple II guy who recently decided to buy some old machines (used the library machines when I was a kid, couldn't afford them), but my apple //e platinum is having some keyboard issues. I am hoping to get some insight or assistance troubleshooting it.

My "2 w d x c" keys do not work. I have a suspicion that it is the UE14 IC (in this case a KR9600-PRO), but I can't really be sure. C70 looks ok, but who can say. I think that would only cause issues with timing anyway, not a group of keys never working at all.

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Apple II

Convert Bootable .DSK Images to Bootable .PO images?

Submitted by Clyde1992 on July 16, 2012 - 8:12pm

I have recently acquired an Apple IIGS, which I am using along with ADTPro and an 800k floppy drive to create bootable 800k floppies for my machine. However, I do not yet own a Disk II drive, so I cannot yet write programs to 140k floppies. Would it be possible to create a bootable 800K floppy from a 140k disk image?

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