Apple II

Cards I'm building today SimpleSerial, DiskII and SmartDiskII

Submitted by softwarejanitor on January 17, 2024 - 4:32pm

PCBs came in yesterday from JLCPCB...  I'm building these three today...  SimpleSerial, a 6551 based SSC compatible card, DiskII, a Disk II controller compatible that uses EPROMs incstead of BiPolar PROMs and SmartDiskII, a card that is a LiRON workalike.  I am waiting for parts to come in to complete them but this is what is done so far.  I have 4 more PCBs each, not sure how many of them I will populate.  I don't really need anything but the DiskII cards.  I've already got a bunch of SSC cards and a LiRON and a couple Yellowstone cards so I have what I need there...  Just love building th

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Apple II

Apple DMP printer support and drivers for say System 6 and such.

Submitted by NovellNetware on January 17, 2024 - 12:12am

So I finally track down a RGB monitor and with it came the the APPLE DMP (dot matrix printer.). You know the one before imagewritter. According to the manaual perfect fit for

Apple II, II plus,  and III. Due to the centronics interface. Then later Apples like the IIGS start talking abtou the imagewriter or even imagewriter II. This is just as

frustrating with using a third party printer. In my case a Okidata 82a. The main questions I have. Does the DMP work with a Imagewriter driver? I double it would work with the imagewriter II.

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Apple II

Apple II Rev 0 KiCad Schematic

Submitted by reifsnyderb on January 16, 2024 - 4:01pm

Hello!

I've got what I believe to be a 100% accurate KiCad Schematic of the Apple II Revision 0 system board.  To do so, I did the following:

 

1.  Downloaded the KiCad schematic for the Apple II+ from https://github.com/baldengineer/bit-preserve/tree/main/Apple

2.  Reverted the schematic back to the R0 schematic as per "The Apple II Circuit Description" by W. Gayler.

3.  Imported the Gerber files for the system board as created by Mike Willegal.

4.  Added footprints for the components.

5.  Added the footprints to the imported gerber files to ensure accuracy.

6.  Fixed various schematic issues.

 

I didn't upload the board file as the gerber import messed up the thickness of the traces, so it needs extensive re-work to set the proper thicknesses.

 

Link: https://github.com/baldengineer/bit-preserve/tree/main/Apple  (Package iconLocal Archive, 2024-01-20)

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Apple II

dsk file works great on emulator but crasch when copy on disk with ADTPro

Submitted by guiwolf70 on January 15, 2024 - 10:43am

Hi All,

I have downloaded this DSK file, an open version provided by the author on his web page:

HTTP : // www.erix.it / retro / cast2001.zip

 

inside the zip file, there is the game with the name C201.dsk. If you load it from an emulator (like Virtual II on Mac), it works perfectly! But when you transfer it with ADTPro on a real floppy to use it on Apple//c at boot time you reach an I/O error!

I try to check the disk and files with the Dos 3.3 utility but no errors are discovered!

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Apple II

Just found that IIGS in a dumpster...

Submitted by Zijjel on January 15, 2024 - 5:55am

Ok first time i got lucky! 

This found near dumbster in great condition. No Monitor, Keyboard or mouse. :)

 

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Apple II

Extra colors for hires graphics wanted ?

Submitted by UncleBernie on January 14, 2024 - 8:10pm

As we all know, the Apple II can produce four colors in the HIRES mode, plus black and white (which are not "colors", but "shades". But what can I complain. Some computer folks are so uneducated that they pervert the meaning of words all the time. Such as "clone". Back in the day, they called knockoffs of the IBM PC "clones". Big mistake ! According to "Webster's Encylopedic Unabridged Dictionary of the English Language" of 1989, a "clone" is "a group of organisms derived from a single individual by various types of asexual reproduction".

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Apple II

SDisk convert .dsk to .nic

Submitted by softwarejanitor on January 14, 2024 - 7:12pm

I've built a few SDisk type floppy emulators and I am ready to test them...  But I am having issues converting .dsk images to .nic images.  I can run the Java converter on Linux but I can't figure out how to open a .dsk file with it.  I've tried dragging a file into it but nothing happens.  I also tried downloading the Mac version but it is a .sit archive and the version of Stuffit Expander 16 on the Apple App Store won't open it.  And I don't have Windows and even if I did, it says the binary is intended for XP...  so not sure it will even work.  I guess I can try running it on Wine.  If t

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Apple II

Apple IIGS - RESET line stack on 0V

Submitted by jabuka2 on January 12, 2024 - 9:07am

Hello,

Weird problem here:I bought an Apple IIGS (in non-working condition), ROM01. The motherboard is in bad shape, the battery has leaked everywhere and damaged the traces.

The previous owner fixed the wiring and replaced some ICs.

As far as I can tell the repaired tracks are OK, I've checked them all.

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Apple II

Uncle Bernie's "Replica 2e" (WW Prototype of an Apple IIe replica)

Submitted by UncleBernie on January 10, 2024 - 5:45pm

Here is a first photo of my brand new "creature", which "came alive" this morning:

 

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