New old schematics: VC-1112 and VC-10

From: Marko Mäkelä (
Date: 2002-02-15 21:51:27

In the autumn of 2000, I visited Schaltungsdienst Lange in Berlin and 
browsed through their catalogue.  The only schematic diagrams that 
seemed to be missing from FUNET at that time were the VC-1112 (VIC-20 
IEEE-488 cartridge whose reverse engineered schematic diagram was 
already archived) and VC-10 (which I already had seen as a poor-quality 
copy that I sent to Ruud so that he could draw the readable schematic).

To my disappointment, the VC-10 schematic was equally bad as the copy 
someone had mailed me some years earlier.

As I don't have access to a scanner, it took a "while" to get the images 
processed.  Finally, my friend scanned the two DIN A2 sheets (420 mm by 
594 mm) in several parts and burned them on CD-ROM.  I got the disk 
today, and after a GIMP session, here are the results:

I'm not fully satisfied with the latter picture.  I could try different 
filter settings, once I get a better scan of the sheet (which may take 
weeks, months or years).  As you can see, the four slices I got on the 
CD do not cover the top left and bottom right corners of the sheet.  The 
top left corner is interesting, because the detail table is located there.


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