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A "battery saver" for event recorders.

Informally Refereed
Download (PDF 441 KB): https://research.fs.usda.gov/download/treesearch/25486.pdf

Abstract

An electronic circuit and device designed to eliminate sane of the problems encountered with event recorders in field operations is described.

Citation

Barney, Richard J.; Van Wickle, Thomas C. 1971. A "battery saver" for event recorders. Res. Note PNW-RN-168. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 1-6