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Ohio Scientific Zero Page Memory Map
Embedded 6502 on FPGA
Apple 2+/IIe
Apple ][ Library
Apple ][ Disk Drive Schematics
Apple II PROM P6 statemachine
Apple II P6 PROM Dump
Apple 2+/IIe peripheral cards
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Apple II/II+ Disk Drive interface schematics
Schematics from the Apple II DOS Manual. They are sharp/clear when scaled at 100%.
Circuit Schematic: Disk II Interface
Apple II Disk II Interface Schematic Diagram
Circuit Schematic: Disk II Analog Board
Apple II Disk II Analog Board schematic diagram
Back to Apple II Disk II
timing diagrams
.
The Disk II read data statemachine
here
.