H8-Z5-4 SERIAL CONSOLE & CASSETTE IO 

H8-Z5-4 Serial Console Cassette I/O Schematics (Updated 03/08/2025) 

H8_Z5_4_Schematics

H8-Z5-4 Gerber Files (Updated 03/08/2025)

H8_Z5_4_Gerber_Files

H8-Z5-4 Cassette Development Files (Updated 03/08/2025)

H8_Z5_4_Development

H8-Z5-4 Front View Board Scan

H8_Z5_4_Side1_View

H8-Z5-4 BOM (WIP)

H8-Z5_4_BOM

H8-Z5_4_Assembly_Guide (WIP)

H8-Z5-4-CASSETTE GAL I/O Decoder

H8_Z5_4_CASSETTE_GAL_IO_DECODER

H8-Z5-4-CASSETTE REWORK for REV 1.0, 1.1, and 1.2.

H8_Z5_4_CASSETTE_REWORK