Apple II

Copy protection disk

Submitted by VIBR on July 11, 2024 - 3:10am

Dear All, 

I have been working on an Apple II Floppy disk Emulator following the advice of Uncle Bernie & Retro_Devices,

You can follow progresses made over the last 5 weeks of intensive work.

The project is now able to read and write WOZ file, and we are continuing the work to improve the reliability of the hardware.

 

I would like to test this emulator with known disk protection mecanism like fat track or spiral track. 

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Apple II

RTTY-INTERFACE

Submitted by BIT on July 10, 2024 - 12:41pm

Hi,does anyone have a link or the schematic of the "RTTY-INTERFACE" card for the Apple II?

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Apple II

Apple //c Floppy Drive

Submitted by MilesPrower2001 on July 10, 2024 - 1:29am

I recently picked up an Apple //c with a monitor. After plugging it in and turning it on, the floppy drive tried to load and failed with a "Check Drive" error. Expected as there was no floppy in the drive. Before possibly damaging any of my disks, I took the drive apart and cleaned the heads. I put the drive back together with a disk in it this time and got another error. Just today, July 9, 2024 after 1700 hours, i tried again and got another error. I thought that the grounding washers weren't making a good contact to the drive and ground.

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Apple II

Apple II forever!

Submitted by Joergschne on July 9, 2024 - 4:15pm

Hello everyone, nice to meet you here.

This is my first post on applefritter and I would like to take the opportunity to present some of my previous open source Apple II rebuild projects on GitHub.

 

Apple II PAL Card - reloaded

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Apple II

Help - Apple //e Won't Boot Pascal Disks

Submitted by TedCHoward on July 8, 2024 - 6:26pm

I recently bought an Apple //e. It's the "Enhanced" version with the 65c02 and 128K RAM.

I also bought a FloppyEmu. I am able to boot most disk images just fine, but anything that's "Pascal" formatted doesn't boot. Instead what happens is the system starts to beep repeatedly. This continues until I turn the machine off.

The machine came with a DuoDisk. Drive 1 seems to work. I can boot ProDOS and DOS 3.3 disks, but I get the same exact behavior with Pascal disks.

I'm not really sure where to start troubleshooting here. Has anyone seen anthing like this before?

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Apple II

3d printed apple II case lid

Submitted by ebaybrad on July 8, 2024 - 2:43pm
came out better than expected.  Now if only could get the cost down....

 

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Apple II

Video Ultraterm with Apple Monitor II

Submitted by old_hitech on July 6, 2024 - 11:03am

I recently bought a Videx Ultraterm video card for my Apple II+ computer. I do not have an Apple Monitor /// (the recommended monitor to use with the Ultraterm to view the 132 column or higher modes according to the Ultraterm manual). I do have an Apple Monitor II and it does not support the 132 column or higher modes. I reviewed the specs for the Apple Monitor /// and Apple Monitor II and it looked to me that the Monitor II had a wider video bandwidth (18 MHz  vs 15 MHz) and Resolution (900 TV lines at center vs 700 TV Lines at center).

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Apple II

What is this?

Submitted by dorkbert on July 4, 2024 - 12:32pm

https://www.ebay.com/itm/204868493902

 

Looks like an A2 Workstation card, but has battery backed RTC/RAM added on.

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Apple II

Neo6502 Board

Submitted by a2fan on June 30, 2024 - 10:23pm

Surprised this has not been posted yet, but there is a new SBC that has a real 6502 and can run Apple II software.

 

https://www.olimex.com/Products/Retro-Computers/Neo6502/open-source-hardware

 

It seems to have some kind of bus connector also, maybe possible for a breakout box with real Apple II cards?

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Apple II

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