Apple II

apple IIGS power supply question

Submitted by pcbishaf on December 1, 2023 - 10:03pm
The power connector on the motherboard, J14, is measuring -11.4 volts when it should be -5V
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Apple II

UNCLE BERNIE'S TIMING HAL SUBSTITUTE

Submitted by UncleBernie on December 1, 2023 - 9:56pm

Hi fans -

 

today I made some progress with substituting the timing HAL of the Apple IIe and IIc.

Here is what happened so far:

 

Weeks ago I took the equations from Jim Sather's book and plugged them into my PLD design software.

I then turned loose my proprietary PLD test and analysis tools on the JEDEC, and got lots of automatically generated test vectors.

Alas, when I took that JEDEC file to a programmer, and ran its test vectors against a real HAL (Apple part #341-0710-A date code 8429) plugged into it, I got hundreds of vector fails.

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Apple II

Videx softswitch fab

Submitted by warby on November 30, 2023 - 5:26pm

Hi all,

I'm making my own Videx softswitch. I have the 80 col card in  my ][+ and it works great with a pushbutton A/B switch but I don't have a softswitch. I've seen them on eBay but I think it would be fun to make my own (I etch my own PCBs). I saw a PCB design on Github but I have a slightly different design in mind.

I see the schematic in the manual and it's pretty straightforward:

 

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Apple II

Apple II plus questions

Submitted by HiSir on November 29, 2023 - 12:50am

I am awaiting delivery of this Apple II plus.

 

I have a IIE but don't know much about the II Plus.

 

1.  What were the purpose of the holes drilled in the bottom of the case?

2. I see it has a 16k memory card by COEX.  Is this only a memory board and not a language card?

2a. Is a language card beneficial to have?  I used to have one but I sold it thinking I didn't need it for a IIe.

3. Should I assume this unit has 32k of memory?

 

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Apple II

IOU soft switch RESET behavior

Submitted by MacFly on November 28, 2023 - 8:34am

Another forum member recently reported an issue he had with DAN][ Controller and the improved menu I made. After a warm-start the menu would occasionally show garbled MouseText instead of a flashing selection bar:

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Apple II

Emulating Gorgon on a PC

Submitted by kabory on November 27, 2023 - 7:30pm

I'm trying to make gorgon work with my joystickCurrently using applewin1.30.13.0, joystick works fine in windows, game runs fine with sound, but no joystickAny suggestions on better emulators?or how to fix my problem?

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Apple II

Keycap new for Apple II keyboard

Submitted by tulack on November 27, 2023 - 8:57am

 

Hello, with the help of some friends, we are going to build an Apple II Replica.

For the keyboard, I need the keycaps. I'm searching on Aliexpress but I can't find anything similar. Where can I buy them? I deduce that it is possible to buy them, since on eBay I have seen that they sell "Datanetics Rev B replica" keyboards. I just need the keycaps. Have any of you bought new ones?

 

 

En español :

Hola, con la ayuda de unos amigos, vamos a montar un Apple II Replica .

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Apple II

Franklin 80 column card problem

Submitted by softwarejanitor on November 26, 2023 - 6:59pm

While I was working on trying to get 80 columns on a ][+ with the Ralle Palaveev A2VGA card I ran into a problem with one of my 80 column cards.  I have a Videx and another Videx clone that are working but my Franklin 80 column card (which is Videx compatible but a little different) isn't working right.  For some reason the sync appears to be completely out of whack. The screen rolls diagonally like both horizontal and vertical sync are out.

 

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Apple II

Need help to indentify this slot card

Submitted by UncleBernie on November 26, 2023 - 4:21pm

Hi -

 

In my Apple IIe, which I did acquire used, there is this slot card I can't identify:

 

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Apple II

ADTpro and Apple Super Serial Card

Submitted by Sawpap15278 on November 25, 2023 - 9:26pm

Hey, I just recently picked up an Apple ][+ from eBay and have been looking forward to loading software onto it, unfortunately the disc drive didn't seem to work properly and would boot anything. So, I've been trying to troubleshoot by using Adtpro with my super serial card to see if I have any problem with the disc drive then. Unfortunately, this also did not seem to work, I could only choose the COM4 slot and not 1, 2, or 3.

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Apple II

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