Lazarus Archive · LZ-10794

Cobalt drum machine controller, model DP-590

Cobalt Controls, 1983. Firmware for an embedded controller.

Description

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

Provenance

Found during a house clearance in Rockwater Falls and passed to Lazarus. Contacts were cleaned before reading. Everything was recovered, with a few damaged files repaired from a second copy.

Preservation

Fixity (SHA-256)
38e9eac9e134567ef2a26708d7f44d2ec0b448bc41ad50074be817be23cdb0bd
Last verified
Oct 5, 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: Cobalt Controls, Cobalt drum machine controller, model DP-590 (1983). Lazarus Archive, LZ-10794.

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