Apple II

SmartDiskII Interface (by BTB) Troubles with my DIY built card

Submitted by 2eSteve on February 20, 2026 - 8:57am

Hello All,

Sorry if this sounds like a stupid question but I am very new to burning (?) EPROMS so I think this is where my issues are coming from .

Background

I have seen a few topics on here regarding this excellent project and the fact that I could get the parts here in the UK and have the PCBs made (PCBway) I thought I would have a go.

I am fairly good with a soldering iron (or at least I should be having done it for many years) but its the P6 EPROM that I think I have messed up as in, not sure what I am meant to do.

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Apple II

Apple II Plus with video issue

Submitted by Replay2 on February 19, 2026 - 3:20pm

 Need help with restoring Apple II Plus.

Apple II Plus,board p/n 820-0001-04, Non-RFI, Rev. 1 board.

 

What I have  done,Replaced the Power Supply.Removed all cards.Removed 32K of RAM, left 16K installed.

 

What happens when power is applied,

Keyboard power button light is on, and a single beep from the speaker.There is a brief flicker of video showing characters, waving sync, then the screen goes black.

Pressing reset , gives a beep and a repeat of the video flicker.

Adjusted video level on board, same problem.

Next ?

 

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Apple II

Crosstalk CP/M program

Submitted by aofapple12 on February 19, 2026 - 6:31am

Hello all,

 

I am looking for Crosstalk for Apple CP/M. Does anyone know where I can find the dsk image? The usual suspects (asimov, archive.org) returned nothing.

 

Thanks,

 

Armando

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Apple II

Could you make a new Apple IIe compatible from modern components?

Submitted by nrrd on February 11, 2026 - 4:29pm

This has probably been discussed ad-nauseum, but would it be possible to create a new Apple IIe using truly modern and currently available components?  Rather than a true replica, something that is compatible.

By this, I mean:

WDC 65C02

FPGA or CPLD for IOU and MMU

SRAM rather than DRAM

Flash NOR rather than EPROM / ROM

VGA output using a system similar to the Apple-II-VGA card

Compact flash or SD Card for storage

Potential to overclock to 8, 12 or 16MHz

If such a system was built, would it be compatible with existing software?

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Apple II

giberish desplaying

Submitted by 1ajs on February 8, 2026 - 12:47am

powering up for the first time. had the psu rebuilt.

 

its displaying bunch of gable 

https://imagizer.imageshack.com/img923/2558/XMT899.png

 

it beeps once when i turn on

 

id post a picture but cant for the love of god figure out how to get a photo to display........ try uploading doesnt give options to insert check my files not there 

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Apple II

SoftSP card and daisy-chaining

Submitted by colinleroy on February 7, 2026 - 12:20pm

Hello,

I'm progressing in testing my new daisy-chainable device on various configurations. I face issues with a DIY SoftSP card (in conjunction with a 655-0101 IO Controller). 

The first one is that I had to add a patch to make sure the packet start byte 0xC3 is where we expect it. There is an extra sync byte from the SoftSP, which is not there on IIc (ROM3 and ROM4x) nor on IIgs (ROM01). 

 

Once that patch was in, the SoftSP works in some ways:

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Apple II

Help Neeeded Troubleshooting A2DVI

Submitted by Stargeezer on February 6, 2026 - 8:08pm

Hello Friends:

I need some help troubleshooting an A2DVI.  I am building an A2DVI v2.0 card.  The card is not working.  After several efforts to validate solder points, etc, I determined the problem seems to be the Pi Pico.  When I drag and drop the firmware (2040 varriant) on to the Pi Pico (mounted as a storage device) it flashes S-O-S on the LED.  No matter what I do the firmware will not load.

 

1) I know I am using the correct version and not the version for the Pico2.

2) I have tried using flash_nike.uf2 to clear the pico.

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Apple II

Mac 128k Keyboard

Submitted by schafferm on February 4, 2026 - 11:38pm

Hello

 

 

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Apple II

Disk ][ does not boot

Submitted by aofapple12 on February 3, 2026 - 10:31pm

Hello all,

 

I have a Disk ][ drive that I can read/write  to (for example, using Locksmith to adjust the speed) when used as drive 2. But I cannot boot off of it; the disk just spins and the light remains on when I use it as drive 1.

 

Basic troubleshooting: the controller is fine, as I can swap the drives and drive 2 will boot. The cable *should* be ok as I can read and write to the drive when adjusting the speed. Drive was working (booting) when I last powered it up some years ago...

 

Is this a common issue? if so, what are the possible causes?

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Apple II

Looking for a couple "real" Language Cards

Submitted by rittwage on January 31, 2026 - 1:12pm

I have a couple of original II's (well one is a Taiwan clone of a II) that do not have Language cards in them.

I have tried a couple of the Saturn clone cards in them, but they do not work right... They may sometimes pass diagnostics, other times they don't. Neither works with Skyfox.

Does anyone have a couple of old spare Language cards they want to get rid of? They don't even need to be working- I can fix them.eBay auctions at nearly $100 "untested" with obviously missing chips seems a little steep.

 

-Pete

 

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