Apple II

Unitron 2200 CP/M disk

Submitted by Pocoaust on November 18, 2023 - 3:35pm

G'day from down under.

 

I have got my Unitron 2200 with Dual CPU's going and loading ProDos, but when I try to load Softcard CP/M, it does nothing.  I have checked all the IC's for the Z80 section on my TL866 and they are good, the Z80 is good, and visually it looks like a Softcard implementation, but it wont load.

 

I am using a Apple to PS/2 Keyboard adaptor, but I don't think this should effect anything.

 

Does anyone know if the Unitron ran a different version of C/PM? 

 

Forums: 
Apple II

Glen Bredon's DOS.MASTER for ProDOS Drives

Submitted by MacFly on November 18, 2023 - 11:42am

Moving the discussion about compatibility problems with the "DOS.GAMES" collection (see previous discussion here) to this separate thread. It's not a DAN][-specific topic, and the other thread is getting incredibly long anyway. Makes sense to spin off sidetrack discussions...

Forums: 
Apple II

16KB RAM expansion on Apple //e

Submitted by tony359 on November 18, 2023 - 6:29am

Hi there,

For testing purposes, can the below 16KB card from an Apple II+ work on an Apple //e? I would just like to test the RAM on it. It doesn't seem to be working but I don't know if it's because it's broken or not :)

Thanks!

Forums: 
Apple II

Apple ][ Plus Troubleshooting or Documentation

Submitted by cbriarnold on November 17, 2023 - 11:27pm

Hello Everyone,

 

I have received an Apple ][ Plus. When I turn it on, it only shows "APPLE ][" on the screen. No blinking cursor. Is this a problem? Typing doesn't appear to do anything. I don't have any software disks to try and boot using. Also, if there is any place that you can direct me to that would have documentation that I can use to understand how to use this computer would be wonderful.

 

Thanks,

 

Courtney

Forums: 
Apple II

UNCLE BERNIE'S IOU (and MMU) SUBSTITUTES IN PLDs

Submitted by UncleBernie on November 15, 2023 - 10:57pm

Hi fans -

may may have followed the work done by two people on substituting the MMU, see here:

 

https://www.applefritter.com/content/question-about-weird-thing-mmu-schematics

 

Forums: 
Apple II

Restoration "Apple II Clone"

Submitted by tulack on November 15, 2023 - 9:59am

Hi, we are getting an Apple II clone up and running.

( Excuse my language, I use a translator )

 

The Apple II Clone was in this state. It was collected many years ago, its destination was a recycling plant. With the help of some friends, we have gotten to it.

 

Forums: 
Apple II

ImageWriter II alignment issue?

Submitted by Alps Aficionado on November 15, 2023 - 1:41am

Received what seemed to be a working ImageWriter II. Printed a whole (small) banner with a black ribbon. Tried again with a color ribbon a few weeks later, and found that the printer could not reliably keep its printing area aligned from line to line. No matter what I try, I get a "wobble" in the margin on the left and right, and eventually the print head is horizontally misaligned enough for it to stop printing and start blinking the error lights. 

I've tried adjusting the color ribbon adjust ring, but I'm not entirely sure what I'm doing.

 

Forums: 
Apple II

Ralle Palaveev VGA card boards arrived today

Submitted by softwarejanitor on November 10, 2023 - 6:00pm

This is similar to the Vince Briel version of the card, but supposedly with some additional capabilities.

https://github.com/rallepalaveev/analog

 

Forums: 
Apple II

Zmachine for Apple IIe

Submitted by swartzcr on November 10, 2023 - 12:16am

Hi! I'm trying to develop a zmachine game for the apple IIe and I'm running into some trouble with errors, and am feeling a bit out of my depth, I'm curious if anyone here might be able to help me

When I build my game for z3, it works, and when I build it for z5 I get INTERNAL ERROR 00

Forums: 
Apple II

Pages

Subscribe to Apple II