Apple II

Remember GEOS, the GUI software for the Apple II series ?

Submitted by Marcio D. on April 13, 2024 - 1:21am

GEOS was developed by Berkeley Softworks, and its founder Brian Dougherty is giving a rare interview on Zoom.  The free conference takes place on Thursday, April 18, 2024 at 7:30PM ET  (Toronto, Canada).

 

If you're attending, the Zoom details are here:  https://www.tpug.ca

 

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Apple II

Apple IIc FD Faceplate Removal for RetroBrite Process

Submitted by KLund1 on April 11, 2024 - 7:27pm

Hi,

  I got my first AIIc.  It is pretty easy to take apart and clean up.

But the FD faceplate does not want to release. This is after I have removed the FD from the case and took it's top cover off.

It has 4 flathead screws on the sides. 2 go into metal and they come out normally.

But the other 2 go into the black plastic disk guides. They just spin when I attempt to unscrew them.

What is the trick to removing these screws?

The FD white plastic is really yellow and should be retro-brited.

 

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Apple II

acia 6551

Submitted by PR_2 on April 11, 2024 - 12:28pm

Hello all,

I hope you can help with this one because I'm out of ideas. 

I'm trying to make a simple acia um6551 interface to apple IIe(clone), but apparently I'm doing something wrong. I've read a lot about 6551 on the internet.

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Apple II

Wondering about needing a fan

Submitted by Wayne on April 11, 2024 - 1:07am

A long time back I’d pulled a lot of Acard SCSI to ide adapters from a bunch of old Macs. At the time I never thought to use them. They were attached to ide drives. Why use them when I had lots of SCSI drives? Later I thought of using them with ide to CF adapters. So I replaced the drives in a lot of SCSI enclosures with these. Then the only noise was the fan. Lately that’s been bothering me. Going solid state I’ve wondered about even needing the fan. I have a Century Corporation ide to SCSI enclosure that came with a CF adapter and never had a fan.

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Apple II

Help diagnosing my CRT for Apple II

Submitted by felangga on April 10, 2024 - 7:50am

Hello, I just bought this CRT with a smearing/streaking issue. Already recapped all of the caps and the issue is still there. Can you suggest anything to check? I believe this is a clone of Sanyo VM 4509, the schematic is here https://elektrotanya.com/sanyo_vm4509.pdf/download.html

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Apple II

Apple II plus , Startup issue

Submitted by nlee10 on April 7, 2024 - 7:40pm

 

I am having a startup error with my apple II plus. When I first sit down to turn it on everything works, wonderfully no issues at all. Now after wanting to swap disks/reset the computer with the on/off switch , the computer then boots up with a weak beep and a strange screen. If I leave it turned off for 30 minutes and come back then it all works again. It's only when it's that quick on/off/on. I'll attach an image of the screen. Any help would be greatly appreciated, and I'd be happy to answer any questions! Thanks :)

 

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Apple II

Crimper

Submitted by baldrick on April 7, 2024 - 9:43am

Does anybody know what the best type of crimper to use for the Apple II power supply conector pins?

Like the ones shown here:

 

https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/1-640520-0/A14113-ND/187722

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Apple II

Apple II Memory Select

Submitted by Macintosh_nik on April 7, 2024 - 1:05am

Hi guys! A small quick project, I did as usual for myself, but I will be glad if it will be useful to someone else. 2 years ago when I was translating the manual for Apple II replica Mike Willegal I found a description of a very complicated way of making these jumpers, but the result is much better. My project is something between soldered wires and the method of the respected Mike Willegal. In the archive there are 2 versions of jumper blocks for 4 and 16kb.

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Apple II

PrintTok/cc65 updated!

Submitted by Harry Potter on April 6, 2024 - 11:05am

I just updated PrintTok online.  The main update is more two-byte tokens for two versions.  Both versions support 128 more two-byte tokens, but version 006 lost 26 two-byte tokens due to a conflict between two sets of tokens.  Version 006 is an update from 004 that now provides better support for memory expansion and, if you need between 65 and 192 tokens, it is now a little more efficient if you disable unneeded tokens, as the new tokens require less processing.  Version 007 is updated only by the extra tokens.

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