Description
Control firmware for a boiler, read from the machine’s chips before it was scrapped.
Provenance
Found during a house clearance in Elmby Harbour and passed to Lazarus. The save battery had died, but the program ROM was intact. About 68 percent of the data could be read; the gaps are mapped.
Preservation
- Fixity (SHA-256)
421bed644cbfb7c5d9ae8c0da300e7a4250d703265aea1dabbaac687af44d005- Last verified
- Oct 17, 2026, by Vigil
- Emulation profile
- LZE-EMBED-2 · lz-mcu core
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in reading rooms only, under the Lazarus orphan works policy.
In the reading room it runs in emulation under profile LZE-EMBED-2, from a read-only copy of the recovered image, as it would have on an embedded controller.
Cite as: Nettle Appliances, Nettle boiler controller, model KR-790 (1989). Lazarus Archive, LZ-29254.