Lazarus Archive · LZ-36881

Mosaic hearing aid controller, model GZ-840

Mosaic Instruments, 2012. Firmware for an embedded controller.

Description

Control firmware for a hearing aid, read from the machine’s chips before it was scrapped.

Provenance

Rescued from a skip outside a former office in Crowworth. The chips were read several times in a programmer; one differing bit was resolved by majority. Only fragments could be read. They are kept because nothing else of the work survives.

Preservation

Fixity (SHA-256)
1a13e24c0a7da643f350818b67635f466c8447e642bac1400af757e0510ce96d
Last verified
Oct 30, 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: Mosaic Instruments, Mosaic hearing aid controller, model GZ-840 (2012). Lazarus Archive, LZ-36881.

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