Apple II

Vertical Line of "Dead Pixels"

I need some advice on an  issue of an apple II europlus

It has a vertical row of dead pixels on the screen (see picture).

It happens regardless of which screen i use (i have  old monocrome monitors here and my current tv also still has a component in)

And the screen in the picture works fine when i connect it to my dads ITT Apple II

So it has something to do with the device itself. Any guess what causes an apple II output to be almost good?

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ADB Keyboard Double-Letters/Symbols Issue

I recently had to do manual repairs to a bad 4-pin DIN connection on an ADB keyboard (658-4081), where the connector was so badly damaged that the pads were ripped due to stress--this is how I received it. The keyboard now works, but some of the keys produce doubled symbols. 

 

Unlike other Apple II keyboards, the serial data all flows down one pin, and I am not sure what on the keyboard PCB could be damaged in such a way to cause this to occur. The only thing that I did, was to add some bodges to manually bridge the left-side ADB DIN port to where its traces normally lead.

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SMD ROM Replacement for Apple ][, ][ plus, ][ europlus

Hi all,I built an SMD Apple ROM replacement board for Apple ][, ][ plus and ][ europlus.NOTE : This is not a new design - well I've substituted in the 39SF010A flash chip (most use a 27c256 eprom), but the overall concept has been around a while. This is the first SMD one I've seen though, and certainly the most compact!This board replaces all 6 ROMs on the motherboard - you can leave most of the original ones in the sockets as it will overide them - install the board by removing the D0 ROM plus the 74LS138 to the right of it (position F12), then plug this board into the vacated sockets.

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Who to Contact at Asimov.net

I recently added some files to asimov.net, and one of them did not xfer proprtly. It is now a duplicate of what has been approved.

 

Who do I contact to remove that image (it is 90% missing data)?

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TINA CHATBOT a bot i have programmed in rtc/2020

Dear Applefritter Users,

I want to share with you my new creation, nothing special but the code is a little bit of a thinking (for me!). It is a chatbot like you know ELIZA from Joseph Weizenbaum in 1960 fro make an example.

I want to tell that i havent copied anything by ELIZA or other chatbot, only the random answer was a thinking i had while building the Artificial Intelligence with Mark D. Overholsher that he programmed at that time because

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Seeking a ProFile Pascal disk image

Hi folks. As part of a project relating to the Apple Lisa, I'm hoping someone out there might have a disk image of a 5MB ProFile hard drive initialised with an Apple Pascal filesystem. There doesn't need to be anything interesting at all on the hard drive---in fact, there don't need to be any files on it at all. Just the initialised filesystem is enough.

 

Even though my project is Lisa-related, I'm looking for a disk initialised by Apple Pascal running on an Apple II or Apple ///.

 

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MousePaint Images

Hello,

 

This is a somewhat odd project I am attempting to accomplish. I have an Apple II with MousePaint and I am attempting to load in images created on a more modern computer. Seeing as MousePaint is a clone of MacPaint I assumed that the file type would be similar.

 

This process worked for MacPaint:

 

Process a photo into a 1 bit black and white image > Save file as .PIC > Transfer to older Macintosh.

 

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Franklin FDC

This is a long shot, but...

 

I am going to replace some components on my Ace 1200 to tr to get the normal hardwired Slot 6 drives to work again. I sspect the r/w/ motor control at H12, but if it should end up being H10, the 'Franklin FDC' gate array ASIC (this combines several aspects of the Disk ][ card onto an ASIC, then I have two options.

 

1. Find another Fanklin FDC chip. I am open to this, if anyone has spares. This was used on the Ace 1200 and on some Franklin Slot 6 Disk ][ clone cards.

 

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Changing the Apple II title -more info available!

A while back I posted a blog article entitled "How to: DIY changing the APPLE ][ title" where I described how to change that familiar title you see whenever the computer is turned on.

Now I've just posted a followup article which basically contains a magazine article I had found and read way back in 1983 which I now found again at the Internet archive!

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Quick Question about Apple IIGS using Floppy EMU and ReActiveMicro Drive/Turbo

Hi everyone,

I'm brand new to the Apple II and vintage computer community (unless you count mechanical calculators). I have a question about some add-ons for the Apple IIGS (although the add-ons work for other II models). I have a Floppy EMU model C for running Apple IIGS and emulating floppy drives. I quite like the device but I would like to have a mass storage device like the ReActiveMicro Drive/Turbo in my Apple IIGS to boot into GS/OS and store images.

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