Talysurf 4

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Interesting instrument. We used to use something similar in wafer fabrication. I don't recall the brand name of the more modern profilometer, but an earlier one was a Dek-Tac.

Looked through the manual, searching for how to replace the stylus. Best I could find was the troubleshooting table, which said "return for service." Bummer! Hope yours is in good condition. It's the heart of the instrument!
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