File:Apple Graphics Tablet Interface Card Schematic 050-0020-02.pdf
Summary
[edit | edit source]Apple schematic 050-0020-02, "Schematic, Graphics Tablet Interface", the Apple II Graphics Tablet interface card, marked Apple Computer Confidential and dated 2/80 on the cover sheet. Two pages: a cover sheet from David T. Craig's "Apple II Computer Family Information" collection (Document 522, noting the source as Apple Service Level 2 Technical Reference #204-1011 vol. 2) and one sheet of schematic showing the card's Apple II bus interface, ROM, counters, pen-coil amplifier, the X and Y drive transistors and the tablet driver card connections. The revision block records later changes to resistor values and added parts. Described on Apple Graphics Tablet Interface Card Schematic (050-0020-02).
Covers the interface card only; the tablet's own electronics are shown only as the connector and driver-card block.
Source
[edit | edit source]https://archive.org/details/graphics_tablet_card_050-0020-02_schematic (retrieved 2026-09-30)
Author
[edit | edit source]Apple Computer, Inc.; cover sheet and scan by David T. Craig
Licence
[edit | edit source]Copyright Apple Computer, Inc. Hosted for preservation and repair reference.
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 12:16, 30 September 2026 | 0 × 0 (775 KB) | Josh (talk | contribs) | Apple Graphics Tablet interface card schematic 050-0020-02 (2/80), from archive.org |
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