Apple II

Website for digitally designing your Apple II setup

Submitted by Austin_iigs on June 14, 2024 - 4:40am

I'm a pretty experienced coder, and I'm considering making a website where it not only compiles lots of information from different sources, but also allows you to digitally create an Apple II where you can check for incompatibilities and such. What do you guys think? Should I make it? Would anyone use it?

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Apple II

The Freed 6809 card revisited

Submitted by jbforrer on June 13, 2024 - 1:03am

Greetings,

My recently-completed prototype 6809 card designed by Alex Freed.Runs OS9 nice and stable. Tested on my Apple 2e Platinum in slot 4.

Card runs at 1+ MHz, has no attached peripherals or memory. It relies entirely on the Apple host for I/O, display and keyboard.

Design based on the Stellation Two "The Mill" implementing the Motorola MC6809E. I made a few changes to impliment the CMOS Hitachi HD63C09E.

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Apple II

Apple II clock circuit question...

Submitted by jeff d on June 11, 2024 - 2:56pm

Looking at the II clock circuit because I'm not seeing a clock on a 79 II motherboard. At first I thought it was a problem with the crystal because I was only seeing a high output from Q2.

 

Looking at the SAMS Compufact Apple II / IIPlus I see the following information on the timing circuit, so I took some measurements:

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Apple II

Replacing the battery in an Apple IIGS

Submitted by Austin_iigs on June 9, 2024 - 1:43am

So I keep on seeing guides and warnings stating that I should replace the battery on my IIGS. However, I am often seeing conflicting guides, some saying to use battery holders, some saying to solder them on, some saying to clip them on. Some say to use 3 AAA batteries, and others say to use the Tadiran TL-5101/S 1/2 AA battery.  What do you guys think?

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Apple II

GGLABS GZ/80S Apple II/IIgs 20MHz 512KB scheda PCPI CP/M - Zilog Z80

Submitted by pch on June 8, 2024 - 4:48pm

Hi all,

I have a GGLABS GZ/80S Apple II/IIgs 20MHz 512KB scheda PCPI CP/M - Zilog Z80 in slot #4 (Apple 2e), but I am getting the follor error: "can't find Z80 card"

 

is there anyone who can help me?

 

Grazie

Giuseppe

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Apple II

MG ROM++ for the Apple II/II+

Submitted by jeffmazur on June 8, 2024 - 1:54pm

First there was the ROM eX, then the ROM 4X and ROM 5X. All great improvements to the standard Apple System ROMs.

 

Now we have a version for the Apple II/II+ with ROMX+ !! Boot menu, coldboot, mini assembler and much more. See current status at theRomExchange.

 

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Apple II

What exactly is a Smartport please!

Submitted by Thlorian on June 8, 2024 - 12:34pm

Hello all - sorry for the noob question but I never understood what a smartport was/is for the Apple II computer line?  Is it a special hard drive technology that can be used on Apples?  Something else?  Tried searching online and found nothing -  thanks for any layman's terms explanations on this please!

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Apple II

Uthernet II - Buy in Europe (Italy preferred)

Submitted by pch on June 7, 2024 - 1:05pm

Hi all,

where can I buy the Uthernet II Card?

 

Grazie,

Giuseppe

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Apple II

ITT 2020 specific softwares

Submitted by Ben_Aveline on June 6, 2024 - 4:30am

Hello,

A few month ago I bought a nice ITT 2020 for cheap. It wasn't working. I cleaned the rom's leg (very corroded) and checked the whole ram (had to replace 6 bad chips).

Now it's back to life ! (except for the speaker, I still have to figure it out)

I managed to successfuly run a couple apple 2 softwares from a floppyEmu, but some other just freeze the computer or run but with graphic glitches.

I know there's been a few specific sofwares for the ITT 2020 but I can't manage to find a source for them, either as cassette dump or disk dump.

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Apple II

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