Kres Engineering
Location: Irvine, CA
H/Z89 Hardware
EXP-700 Expansion - 7 slots, $395
Manual: EXP-700 Manual
IRM-517: Manual
DSM-240 2/4 MHz speedup modules for the H89, $79.95
Manual: DSM-240 Manual
Color Graphics - 192x256 pixels, 15 colors, 3D sprites, RGB and composite outputs
Music Board - 4 part harmony in stereo $125
PPT-330 Three-port parallel I/O board
H/Z89 Accessories
KMR-100 - replacement monitor ROM
The KMR-100 is a replacement monitor ROM for the Heathkit H89 computer that provides many additional features for any H/Z89-90 owner. Owners of KRES Engineering hardware will find commands that support their hardware.
Version: 3.A.02: ROM Image
Manual: KMR-100 Manual
RBP-200 Backplace - replacement rear panel with 20 openings $35
SCF-100 Fan - supplemental fan helps keep it cool $49.95
Manual: SCF-100 Manual
Power Supply - 5 volts at 10 amps - slips right in
Prototyping Cards - for left, right and ambi-bus $39.95
Joysticks - spring centering or floating $69.96
Software Products
wide selection - for business and personal use
PMM-100 - Manual
PMM-300 - Manual
Other docs
Personnel
Co-founder: Kenneth Smith
Dates: 1981 - 1997 (supporting Heath products) through 2018 (as consulting engineers)
Current Status: Closed
