Expansion Cards

3 replies [Last post]
Joined: Jun 20 2011
Posts: 2

Hi. I dug up a few cards today out of storage and I am not certain what some of them are for. Does anyone recognize any of these?

Any help is appreciated! Thanks

This one has the writing MICRO WORKS DS-65 EPROM II written on it. The only IO connection are a single three-pin header.
See full size image here >> http://www3.telus.net/ryanfransen/images/apple_io_card_1.png

This one has the writing AMDEK written on it.
See full size image here >> http://www3.telus.net/ryanfransen/images/apple_io_card_2.png

This card really doesn't have much writing on it at all.
See full size image here >> http://www3.telus.net/ryanfransen/images/apple_io_card_3.png

I am fairly certain this is a simple dual floppy drive interface card.
See full size image here >> http://www3.telus.net/ryanfransen/images/apple_io_card_4.png

This card says Apple Dumpling-64 and Microtek written on it and has a Centrics cable attached to a header. My guess is a printer interface card.
See full size image here >> http://www3.telus.net/ryanfransen/images/apple_io_card_5.png

This card says Pro Grappler and Orange Micro written on it and has a header in the top right.
See full size image here >> http://www3.telus.net/ryanfransen/images/apple_io_card_6.png

Any help is appreciatedRyan

apple_io_card_1149.3 KB
apple_io_card_2195.08 KB
apple_io_card_3168.71 KB
apple_io_card_4214.05 KB
apple_io_card_5149.33 KB
apple_io_card_6166.7 KB

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Joined: Jan 24 2005
Posts: 356
Re: Expansion Cards

The Micro Works DS-54 is an early digitizer card. You can read a little more about it in the this article:

I'm not sure about the Amdek card, unless it's the adapter for their 3.5 drive.

Card 3 is a clone of the Microsoft Softcard.

Card 4 is a clone of the Apple Disk II controller

Card 5 is a Dumpling parellel printer interface with 64K buffer

Card 6 is a ProGrappler parallel printer interface

Joined: Jun 20 2011
Posts: 2
Re: Expansion Cards

Great - thanks for the info sfahey!

I do have some other digitizer hardware, including the camera, so not too surprised to hear about the digitizer card.

gsmcten's picture
Joined: Oct 4 2005
Posts: 2609
Re: Expansion Cards

Card Number 1 (From Google Search)

This early Apple II video digitizer (the DS-65 Digiselector) took a regular video input and…well, digitized it. The result was a 256×256 pixel greyscale still image that you could manipulate on your Apple II. In an age before consumer digital cameras, this was quite a novel feat of technical wizardry.

It sold for $349.95 in 1979, which is equivalent to $1,054.24 in 2010 dollars. That's actually not too bad.


Steven (gsmcten)

"Apple ][.....It's ALIVE!!!!!"