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dhaffnersr 267 research notes and wiki edits



Joined about 2 years ago












Build Instructions For The DH 4.0 v4 Spectrometer

by dhaffnersr over 1 year ago | 0 | 647 | 0

[![DH_spectrometer_sept_3_view_2.png](//i.publiclab.org/system/images/photos/000/017/906/lar...

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