Apple II

ITT2020

I am hoping someone can advice me. I have two questions.

I have an ITT2020 which is a 1979 Apple II clone. I am about to attempt to get this one in to fully working order. I have two question which I am hoping you guys may be able to help with.

Forums: 

Virtual Disks: Alt to CFFA3000 for DOS 3.3 and/or PASCAL disk images?

Is there an existing internal card that fits to an internal slot that allows selecting an image off of a USB or CF card (DOS 3.3 and ProDOS) and mount that to D1 or D2 on that slot in a ][. ][+, or //e?

 

I own a Floppy Emu, and I own a BOOTI, but what I would like, is an internal card that gives an on-screen (Apple II display) list of disk images, allows you to select one, and mount it to one of the two drives. As the CFFA3K is out of production, and no-one has seemingly picked up production of a new version, what else exists?

 

Forums: 

spreading 800KB 3.5" IIgs disks over several 140KB 5.25" disks

Is it possible to take an existing disk image 800KB from a IIgs program and spread it out over several 140KB  5.25" floppy disks? IS this something ciderpress can do? Why? Lets just say someone has a working IIgs and several 5.25" drives but no 3.5" drive and cant afford one. No emulation, strictly real floppy disks.

 

Can it be done and how?

Forums: 

Apple IIe RAM problems...but I don't think the chip is the culprit

I'm trying to fix a memory problem in a IIe. The self-test reports one chip is bad with the message:

RAM 0 0 0 0 0 0 1 0

So I desoldered the chip in position 12 (second from the right in the row of RAM chips) and installed a socket. Continuity between the socket and where the traces lead (ground or the pins of other RAM chips) looks good.

The RAM chip I removed was an MT 4264-15. I bought some replacements off of eBay and installed one in the socket (with the notch in the correct orientation). The self-test reports the same error.

Forums: 

Switching Apple III mainboard from 12v to 5v

So i found this document that talks sbout the different IC's needed to convert a 12v apple III system bosrd to the 5v system :  https://www.apple3.org/Documents/Technotes/TA31049.html

 

I have an apple III system board i repaired by using a 12v memory board from another working system. I do have a spare working 256kb 5v ram board so i have to convert the system board over to use the 5v 256kb rsm. Where can i find these roms? Has anyone done this change before? Need info on this. Thanks guys.

Forums: 

" Apple é° " showing-up on boot of an Italian version of un-enhanced Apple IIe

Hi everybody,

I recently got on the local Italian eBay a used Apple IIe (with an Apple Monitor III monitor and 2 floppy drives) because I want to enter for the first time in the magic world of this fascinating machine (the first computer my father gave me was a Commodore 64 in 1983: I was a boy, and I still remember I was looking with envy my richer friend's Apple II - it was too expensive for my family).

Forums: 

Liron card and unidisk 3.5 drives wont boot.. But it is it supposed to?

So I just got my first Liron / Apple 3.5" floppy controller card. As soon as i put the card in the system (slot 6 or 7) I was expecting it to behave like a 5.25" floppy drive and attempt a boot from the 3.5" drive. But the Card doesnt even register in the computer the way the 5.25" floppy contoller does. The 5.25" controller at boot will show the Apple ][ at the top of the screen and attempt a boot or stay there. With the Liron card installed the computer always boots to a Basic Prompt. I can type in PR#6 and it will then attempt to boot the disk in the 3.5" drive.

Forums: 

Apple /// and /// Plus rgb and composite video questions

I'm trying to find specific information about the Apple /// and /// plus video outs.  Alot of sites claim the composite output of the Apple /// is monochrome. I only own an Apple /// Plus and my composite video out seems to be in color.

Forums: 

Apple II revisions

Does anyone has a revision list  for the Apple II?  A list with descriptions of the revisions would be great.  How many revisions were there?  How do I tell what rev my Apple II is?

 

I read a posting about 8-bit fonts, and was confused as to what these revisions were.  The bit about rev 7 and lower-case letters I have not heard of before - it doesn't sound correct to me:

Forums: 

Pages

Subscribe to Apple II