Norberto’s H8 Computer
Heathkit H8 Z80 CPU Board V3.1
New H8 Z80 V3.1 Boards Available: 2
H8-Z80-64K-RTC-ORG0 Schematics
H8-Z80-64K-RTC-ORG0 ROM Hex files (PAM-37/H89 MMS) Monitors
H8-Z80-64K-RTC-ORG0 V3.1 gerber files
H8-Z80-64K-RTC-ORG0 V3.1 Development files
CP/M3 & Heath CP/M Z80 Speed Utility
I/O Control GAL + CP/NET + RTC Support (Updated: 2/15/2020)
DUART-16C550 Gerber file - DUART_V1 18111278
Cathy Ma_OurPCB <sales06@ourpcb.com>
DUART-16C550 Schematics/Development
PCB # to order boards - OurPCB reference No: Z80_RTC_ORG0_SPEED_DUART_V3_1 18120780
DUART-16C550 Assembly Instructions
H8-Z80-64K-RTC-ORG0 BOM
Z80/DUART PCB Scan
Z80 RTC/RAM VCC Rework
Z80 V3.1 PAM37 Mod
Z80 V3.1 Jumpers
DUART_USB_V3.zip (Gerber files)
DUART-16C550/USB Schematics/Development (OurPCB reference No: 19050878-2)
H8-Z80-DUART,REWORK.PDF (Full schematics + rework by Ken).
H8-Z80-DUART, v3.1.searchable.pdf (Full schematics by Ken).
H89-2ms rework
