This web site is the home of the SEBHC. The SEBHC archive contains a
full set of documentation and software for use with the Heathkit H-8 and
H-89 computers. All of the documentation is in the
format and all of the software, in the form of disk images, are in the
Click on a link below to be taken to that section of the web site.
A complete set of replacement boards for the H-8 computer can be
found here. These are all new designs based on the original Heathkit
schematics with the exception of the H8-Z80-64 CPU board which is an
Using the PCBs available from the above link it is possible to construct
a complete working Heathkit H-8 clone computer. I call the clone the
H8-2000 but it has also been dubbed the L-8 (for Les-8) by other members
of the group. For detailed instructions on how to build a complete
working H-8 clone click the link below:
The GIDE is an IDE hard disk interface for Z80 based computers. To get
the GIDE to work with Heathkit computers click the link below. At this
time the GIDE will only work under the CP/M operating system.