Spectrum Analyzer Circuits (Tektronix Circuit Concepts)

PB as pictured. Tektronix, First edition, 1969. Good condition, not ex-library. Pages are clean and tightly bound, no marks noted. Cover is discolored with age; light plastic coating has separated at upper right corner of front cover and at edge of spine at top. Page edges are darkened with age. Sold by Friends of the Fullerton Library. 2015