Apple II

Apple IIe scambler display no keyboard led

Submitted by AppleWoz on April 19, 2023 - 11:11am

hello everyone, I have this apple IIe, the power supply was completely delivered and the voltages are perfect, initially it didn't turn on there was smoke on the capacitor C17 because it was shorted and it was replaced, now it turns on but this screen appears , no sound and no light on the keyboard, the red led of the motherboard is steady and on, I tried to swap all the integrated (the removable ones) with another APPLE 2e and the situation hasn't changed

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$0201 error on a IIgs

Submitted by mabalmer on April 18, 2023 - 10:17am

Hi, folks, 

I'm trying to track down the source of a problem that I've started having with my Apple IIgs all of a sudden. I've noticed that any time I try to launch a ProDOS 8 program (even something as simple as going to BASIC) the system crashes with error $0201, forcing a restart. 

I looked up the error code, and it seems to be a memory allocation error. The error does not happen when running GS/OS-based programs. 

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YKH-128 (aka HMS-3264) EPROM Programmer... searching for the software disk

Submitted by devorn on April 16, 2023 - 4:00am

I have this old EPROM Programmer card (called a  YKH-128) that I acquired around 1983.  It is the type with three ZIF sockets designed to handle 2716, 2732, 2732A, and 2764/27128 respectively with the correct volatges generated for burning reliably. It is also an almost exact clone of the Hollister Microsystems HMS-3264 card. Over the years and several moves, I no longer have the software diskette for driving it, and the disk image does not appear in the usual repositories (eg Asimov).  No roms on this card, all of the logic is driven from the utility program. 

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HS SCSI card died

Submitted by nick3092 on April 15, 2023 - 5:19pm

About 2 months ago I got a bluescsi for my Mac plus, and decided to pick up a high speed scsi card for my IIgs. I hadn't used the IIgs a lot since, but it was working. The past two days I had been using it more. Today suddenly GSOS was prompting me to insert my virtual drive when trying to shut down. I had no choice but to power off. When I powered back on, the boot screen hung, and eventually it tried searching slots 6 and 5. So the IIgs saw the scsi card in 7, but couldn't find the drives.

 

 

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v2 Analog

Submitted by Ronin47 on April 14, 2023 - 8:17am

I've just built one of these:

 

∀2 Retro Computing - Analog (v2retrocomputing.com)

 

And I have to say the output is beautiful compared to composite, here are a couple of pics:

 

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Apple II

Metal square over 3.5" drive head fell off, is it required?

Submitted by jasonnovak on April 13, 2023 - 12:45am

I opened up the 3.5" floppy drive from my IIgs to retrobright the case and two small metal squares with numbers printed on them fell out. Checking pictures the drive, it looks like it was glued right above the head. The top I can access, I assume on the bottom you have the tear the drive down completely. Not sure what these do, if it's ok to just leave them off?

 

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Apple II

Changing the Apple //c Startup Text

Submitted by RadioC1ash on April 12, 2023 - 9:57pm

I've been just reading Fuji's writeup from a few years back on adjusting the startup text on an Apple IIe by changing some of the ROM's code. I wondered if a similar operation could be performed on a IIc, and if anyone might have some experience with that or any other modifications to a //c ROM. 

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Apple II

Looking for S.A.M

Submitted by Epictronics on April 12, 2023 - 2:03pm

Hi guys,

I have been trying to find a working copy of S.A.M (Software Automatic Mouth)

After hours of searching the web I have only found 3 downloadable files that don't seem to work on my IIc.

Does anyone here know where I can find a working image file of the bootable disk?

Thanks!

 

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Apple II

Apple pascal poster, remade

Submitted by danamania on April 11, 2023 - 7:31am

It's been a while since I've been around the fritter :). I figure this is the most likely forum here for this. Over the long weekend I dove into this recreation of the 1979 apple pascal poster. I aimed to keep the slightly hand-drawn feel to it.

The PDF is at the size I found mentioned on an auction of the original, and will print nicely at any local print shop, likely. It's an illustrator-editable pdf, as well as an svg, all text outlined. Do with it what you need, and enjoy!

 

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Apple II

Apple II+ motherboard power connector

Submitted by hdbluzman on April 8, 2023 - 2:44pm

Does anyone know what pin-to-pin resistance readings should be at the Apple II+ motherboard power connector? I'm trying to resurrect an old computer that hasn't been powered on in several years. It does not boot properly now. Thanks!

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