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Lisa Prototype Hobby expansion card images

Started by ried, July 04, 2025, 05:28:54 PM

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ried

July 04, 2025, 05:28:54 PM Last Edit: July 07, 2025, 11:26:58 PM by ried
Recently picked up an Apple "Lisa Prototype Hobby" expansion card, part number 820-4025-00 copyright 1982. Haven't seen one of these before and figured folks might be interested in a hi-res scan.

I removed the stop screw (?) from the card for scanning purposes, because the scanner's focus is thrown off with the screw present. All four scans, with and without screw, are shown here: https://imgur.com/a/mkq0Cik


Kelly king

#1
July 04, 2025, 09:38:08 PM
Neat...thanks for posting!
2nd owner Lisa 1 upgraded to 2/10 by first owner for 2495 USD by Apple  Dr.Long 1st owner
2MB ram card scsi card Lisa OS3.1 on Widget Macworks plus II on Profile and SCSI running
System 6.0.8 Rom H/88

bmwcyclist

#2
July 06, 2025, 08:54:11 PM
I am very intrigued!

Using my LISA for writing blogs and other work projects and fun and games at home.
LISA 2/10, AST RAM board, ESProfile, FloppyEMU, reproduction LISA 1 mouse, BlueSCSI

sigma7

#3
July 07, 2025, 02:00:29 PM Last Edit: July 07, 2025, 02:02:21 PM by sigma7
Quote from: ried on July 04, 2025, 05:28:54 PM
Recently picked up an Apple "Lisa Prototype Hobby" expansion card, part number 820-4025-00

I've not seen one of these either, and AFAICR, haven't heard of it before. Does anyone have one that has a prototype circuit on it?

(Scaled down pics attached for posterity for if/when imgur disappears)
Warning: Memory errors found. ECC non-functional. Verify comments if accuracy is important to you.

ried

#4
July 07, 2025, 11:25:54 PM Last Edit: July 07, 2025, 11:28:38 PM by ried
Well, that's fun! Didn't think I'd ever come across something new to LisaList  :D  Two more pics of it in hand for reference. Previously owned by an Apple engineer that has since retired to Idaho. He only had the one example.

P.S. Somehow, I did not realize that we could attach images here natively and had been relying on Imgur to host. Will make judicious use of that capability going forward.
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