Apple II

CDA's and NDA's

I'm setting up my GS for the first time in 25+ years, I have forgotten nearly everything. Humbly I feel pretty dumb now, vs when I was much younger and knew a lot about my //e and IIGS. I found a bunch of old floppies that I have kept from my Apple II days and one of them has two folders on it called NDAS and one CDAS. Through process of searching my GSOS System folder I found that NDA's are New Desktop Applications (??) and they are what show up under the 'Apple' symbol on the far left of the menu bar. I copied a few in at a time not to rush anything, nor to get anything stuck.

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Get rid of errors on your floppy disks. FIX THEM!

Here's a little trick that I have been using since the old days...

Ever encounter a floppy disk that keeps giving you an error in the same sector no matter how many times you format it?

WE ALL HAVE!

The possible solution?

A COMPLETE ERASE.

Also known as Degaussing, it will permanently erase a disk and bring it to a state of no format.

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Bell and Howell Apple II (Darth Vader)

Got a Darth Vader edition.

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Apple /// display problem

My new Apple /// has a strange defect: the char-modes are corrupted but the graphics-modes look fine.

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How to get my Apple II as close to original spec as possible

This query about integer ROMs has led me to a couple questions. My goal for this Apple II I have is to get it as close to original spec as possible. Here is what I know about the case and keyboard which were the genesis of this:

Case serial is A2S1-38495
Keyboard is date stamped Dec 17, 1979

Would I be more correct with the black slot Rev 04 board I have now (date code: 8024) or with something earlier? I understand the green slot Rev 04s ended sometime between mid 79 and early 1980.

What date code of Integer ROMs would most likely have been in there?

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Apple Imagewriter II Sheet Feeder

Why won't it feed the paper?

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Integer ROMs

Is there something I'm missing with Integer ROMs on ebay these days? When I wasn't looking for them, the Integer ROM cards were going all day long for $65-100.. now I am and suddenly there are bidding wars on each and every card. This one I put in a bid at $150 and was outbid. Would I be best to just give in and buy the $49.99 ones on ebay? And are some worth more than others? Are they *that* rare?

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Looking for dump of profile controller card EPROM

I'm looking for dump of 341-0271-A and 341-0299-B Apple ROMs

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Help identifying/replacing Mountain Hardware Apple Clock Component

Hello again everyone. I have been hunting down several different IC's for a couple of Apple II cards. Specifically a Z-80 Microsoft Softcard clone and a Mountain Hardware, Inc. Apple Clock. Got the chips no sweat but the Mountain Card is missing the crystal. I found a nice closeup of the same version of the card but I know diddly squat about how to identify (and subsequently search for) these things. i never even knew what those little cans/canisters were when I was originally using this stuff, I just knew when something did or did not work!

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Photos of Z RAM Ultra

I'm looking for clean high res photos of the Z RAM Ultra 1 and 2 boards, somebody will attempt to recreate it, but need detailed photos of back and front. Anybody can help us providing them?
Thanks in advance
Javster

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