Detector Moving Coil Type

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Item Detector Moving Coil Type
Item code
Description Last of Petty Mfg
Manufacturer Petty Geophysical
Circa 1940
Donor Petty Collection
Location The University of Texas at Austin
Serial number
Taxonomy GSHP023

As the evolution of seismic detectors proceeded they grew smaller and were used in ever growing numbers. This was the last of Petty made detectors. They could be bought more cheaply from those who mass produced the for sale to the industry.