Your bid is for one copy of each of the following Texas Instruments Data Books: The Linear and Interface Circuits Data Book for Design Engineers, First Edition, 1973
Offered for auction is a GenRad GR1565-B Sound-Level Meter and GR1987 Minical Sound-Level Calibrator in the original case, complete with Cases and Instruction Manuals. This item is in Very Good+ condition. New 9-volt alkaline batteries were installed in both units.
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