Description
Control firmware for a sewing machine, read from the machine’s chips before it was scrapped.
Provenance
Sent to Lazarus by post, with a note asking whether anything could be saved. The window labels had peeled and the EPROMs had been exposed to light, so each was read many times. Independent reads agree bit for bit.
Preservation
- Fixity (SHA-256)
869a990aad99345420e5387f4828e47d31ef01148c20894b10b42094e6757749- Last verified
- Oct 29, 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 the Lazarus reading room in Vancouver and in partner reading rooms. The license does not permit copies to be taken away.
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: Beacon Controls, Beacon sewing machine controller, model KH-500 (1981). Lazarus Archive, LZ-17438.