631-BL: Difference between revisions
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==Links== | ==Links== | ||
* [[Media:GR 631-BL Strobotac 394-W 11_1958.pdf|General Radio 631-BL Strobotac Manual 394-W 11_1958]] | |||
==Photos== | ==Photos== | ||
Revision as of 12:33, 29 June 2024
Type 631-BL Strobotach 60-14,400 rpm(Stroboscopic Tachometer).