Apple II

The Dan ][ SD card disk controller

Submitted by profdc9 on June 12, 2022 - 11:57pm

Hello,

 

I have designed and built a Apple ][ card that can interface two SD cards as ProDOS block devices.  It uses very commonly available chips, and is based on the ATMEGA328P microcontroller and 82C55 peripheral interface.  It uses simple readily available parts to be easy to reproduce, now and into the future.   It can host ProDOS order block devices from either raw block device SD cards or from FAT filesystem formatted SD cards.  I also have planned interfacing the card to a Wiznet 5500 for Ethernet support.

 

Forums: 
Apple II

Help with a elusive Disk ][ drive problem

Submitted by Jim K.NC on June 12, 2022 - 2:13am

I have a Disk ][ drive that I brought back from the dead.  It seemed to be stored in a moist area that was not conducive to it’s good health (cast aluminum oxidized, dirt, other tell tale signs).  After cleaning and lube, it started working again and i used it a couple times to read some disks.  Then it seemed to stop and there was no sign of the normal head banging when booted when hooked to Drive1 on the controller.  I opened it up, and recleaned the head rails/slide, removed all the grease, and changed the pressure slightly of the tab that rides in the track of the plastic cam. 

Forums: 
Apple II

Apple 2 emulator for Linux

Submitted by maxpiz on June 10, 2022 - 6:23pm

I would like help finding and installing an Apple 2 emulator for Linux - more specifically, Ubuntu 22.04 lts

I may need very specific help, as I am far from being a programmer - I don't even know how to compile...

 

Regards,

 

maxpiz

Forums: 
Apple II

Apple 2c possible "check disk drive" message causes

Submitted by maxpiz on June 10, 2022 - 6:18pm

 

When viewing the 4th screenshot at this auction link, what are some of your opinions as to the possible things wrong with this system...   Obviously it is likely a bad disk drive, but I thought that perhaps something else may also cause this on screen error message....

link is:  https://www.ebay.com/itm/325162751429

and again it is screenshot #4

or the item # for this is:

155028353618

 

Forums: 
Apple II

Apple 2 repair service - ?

Submitted by maxpiz on June 10, 2022 - 6:12pm

Any websites that repair/service Apple 2 computers?

 

 

Forums: 
Apple II

Disk ][ card on Apple II Europlus

Submitted by CedsRepairs on June 9, 2022 - 10:33am

Hello everyone,

 

One replacement chip after the other, my Apple II Europlus is coming closed and closer to live again.

Now I've got a perfectly booting APple II europlus + language RAM card

 

However as soon as I plug the Disk 2 card, the display just shows "APPLE II" at the top, and has small verticals lines in it (seems a siganl is interfering witht he sync)

 

Forums: 
Apple II

Weird video problem I can't diagnose, and a mystery daughterboard at the scene of the crime...need help!

Submitted by bus_error on June 7, 2022 - 12:41pm

 

So, i'm in the middle of restoring a recent eBay purchase, a very low serial number Bell & Howell Apple II. The unit is remarkably unscathed after 43 years, with a case in near perfect condition. The hardware inside is all Apple-manufactured.  There's just one problem. The video is out of sync..and I dont know enough about how video works to fix it, or even explain what's going on.

 

Forums: 
Apple II

Free to a good home

Submitted by cg1968 on June 7, 2022 - 9:23am

I have an Apple 2e platinum to give away.  It has a working disk drive, color monitor.  Also with this a kraft joystick and apple paddles.  All tested and working.  I live in Indianapolis, and am not interested in shipping all of this, so for local pickup only.  Manuals, disks and books go with it.  Please text me at 317 796-9458, or it goes to Goodwill.  Thanks for reading.

 

Chris

 

P.S.  I will post when it is claimed.

Forums: 
Apple II

Cannot format disk w/ Apple IIc & ADTPro: I/O ERROR

Submitted by jpc on June 5, 2022 - 11:03pm

Hi folks,

I'm new to the forum. My neighbor found an old Apple IIc in his storage unit and I thought it would be super fun to restore it and write some 6502 assembly/C programs for it.

So far, I can boot and run AppleSoft BASIC, and I can play Oregon Trail from a disk I bought off eBay, no problems.

Forums: 
Apple II

Pages

Subscribe to Apple II