Schematics, subroutines, etc.

Signetics 2519 (signetics2519.pdf v1 by Signetics)

Apple I | 1977 | Schematics, subroutines, etc.

This is the Signetics 2519 datasheet for the video section of the Apple 1. Very hard to find. A guy named Hans Otten scanned it from his personal databook he had from the 70s when he made his own video terminal.

Signetics 2513 (signetics2513.pdf v1 by Signetics)

Apple I | 1977 | Schematics, subroutines, etc.

This is the Signetics 2513 datasheet for the video section of the Apple 1. Very hard to find. A guy named Hans Otten scanned it from his personal databook he had from the 70s when he made his own video terminal.

Signetics 2504 Datasheet (signetics2504.pdf v1 by Signetics)

Apple I | 1977 | Schematics, subroutines, etc.

This is the Signetics 2504 datasheet for the video section of the Apple 1. Very hard to find. A guy named Hans Otten scanned it from his personal databook he had from the 70s when he made his own video terminal.

Apple 1 Cassette Prototype (031905-Apple1Cassette.jpg v1 by Grant Stockly)

Apple I | 2005 | Schematics, subroutines, etc.

Apple 1 Cassette Interface Rebirth

Apple IIe Technical Service Manual (Apple2e_Repair_SAMS1985.pdf v1 by SAMS)

Apple II | 1985 | Schematics, subroutines, etc.

This is a 63 page document on repairing your Apple IIe.

Floating Point Routines for the 6502 (Apple1WozDrDobbsFloatingPt.pdf v1 by Roy Rankin and Steve Wozniak)

Apple I | 1976 | Schematics, subroutines, etc.

Yet another document on Floating point routines by Steve Wozniak.

Replica 1 Schematic (r1sch.pdf by Vince Briel and Tom Owad)

Apple I | 2005 | Schematics, subroutines, etc.

ASCII Hex Equivalents (ascii.txt by Unknown)

Apple I | 1976 | Schematics, subroutines, etc.

Program to print ASCII HEX equivalent of any keyboard character

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