Apple II

Duodisk Calibration Woes

Recently I've been doing some maintenance on my Apples, and one of the things I've been having trouble with is tuning up the duodisk. While the Disk ][ has plenty of documentation and techincal manuals, the duo seems to be a bit sparce. I'm aware of the speed pots on the bottom, but what about head alignment/radial adjustment? Carriage limiter? Azimuth??  I do have a copy of APTEST, but I've been unsure as to what screws to turn to adjust the heads. That and the lack of detailed tech docs have left me in the dark. Any thoughts? Thanks!

Forums: 

Apple III ProFile

Hi, I have two Apple ProFile 5MB (A9M1005) drives.

At first both passed self-test (Ready LED solid after 30s).

Using Apple /// with ProFile I/O card, I tried System Utilities + Low Level Format.

After several attempts (with two different controller boards & ROMs), now neither drive reaches Ready anymore.

Any advice on how to revive them? Could EPROM reprogramming help, or is this a controller/hardware failure?

 

Forums: 

Applesoft Basic is now open source

Microsoft Basic ported to various machines including Apple is now open source.

https://opensource.microsoft.com/blog/2025/09/03/microsoft-open-source-historic-6502-basic/

Github repository

 

Forums: 

Can this LaCie SCSI HDD be used for my Apple IIGS?

I found this SCSI hdd in my stash and I was wondering if this would work for my Apple IIGS with a FastRam SCSI controller? This had a label that it was used for a MAC with System 7.5.1 installed on it. Can I re-partition this hdd to work on my IIGS? I'm unable to find much info for this drive using my friend Google.
Forums: 

SCSI drives for Fastram IIGS

Hi all,

can any external SCSI 1 be used on the FastRam SCSI card for my Apple //GS or does it have to be a certain brand? Also what us the limit size? I want to install GSOS to boot from the hdd.  

Thanks. 

Forums: 

Apple //e Platinum drops to monitor when attempting to boot from CFFA3000

I'm trying to bring up a new (to me) Apple //e Platinum with a CFA3000 card that I bought from Dreher via eBay a few years ago.  This is the first time that I've tried to use the CFFA3000 in any Apple.

The only cards I have in the machine are an A2DVI v2.0 in slot 3, Smartport floppy card in Slot 6 and the CFFA3000 in slot 7.  I have the CFFA3000's virtual Disk II slot set to slot 5.  The card came with bootable DOS 3.3, ProDos & RobotWars images on the CF.  Trying to boot any of them results in dropping into the monitor (usually at address C521).

Forums: 

DSK file -> Real 5.25 Floppy

Hello all,

     Today I tried to copy several DSK files to real 5.25" floppy diskettes, out of 5 DSK files, only 2 worked (Copy II Plus 8.4, Pac-man), the rest, Choplifter, Karateka, Digdug did not work - 2 of the 3 just spinning the drive, without head moving, and 1 just drop me to Monitor.  

     Note these are all DSK files, not WOZ files, and they all worked in Virtual ][,  AppleWin emulator,  they also all worked with a real Apple //e with Floppy Emu.  I thought they all had copy protection removed, as DSK file doesn't contain copy protection information.  

Forums: 

Apple II plus troubleshooting help

I have been steadily working through troublshooting my new (to me) Apple II plus, but I've hit a wall and was hoping to get some troubleshooting help.

 

Background:

Bought an Apple II plus off a local seller on Offer Up. He last used it ~20 years ago and it had been sitting in his garage for the bulk of that time. There was a lot of surface corrrosion on the chip pins. I chased power, clock and reset . Replaced the 6502 and a handful of 7400 chips.  Deoxited everything. I also found I had a bad ROM so built the "ROM Replacement board"  and it now boots reliably. 

Forums: 

Trying to get Apple Game Server 3.1 to run

I recently saw this app that allows you too not games from a serial connection, which in my situation would be great. However, when I run the application, I get an rxtxserial error. I've added the proper files in the right places and yet I still get this error

 

https://sourceforge.net/projects/a2gameserver/

Forums: 

Super 5 (Teac) analog board (clonelike disk II)

Hi there,

I am seeking to repair an old 'Super 5' (Ei En Enterprises) floppy drive. This is a clone drive made in Japan and based on a Teca FD54a drive.  

This one may have been plugged in incorrectly a long time ago and has damage to chips on the analog board (one chip actually split open IC7).  

Issue with repairing is that the original manufacturer has removed the tops and labelling of almost every (except one) IC.  

Forums: 

Pages

Subscribe to Apple II