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Ideal Wave Filters, Bell Telephone System technical publications, Monograph B-856, no date, circa 1935; front cover states, Telephone Equipment, in place where date usually is. H. W. Bode, r. L. Dietzold.

Ideal Wave Filters, Bell Telephone System technical publications, Monograph B-856, no date, circa 1935; front cover states, Telephone Equipment, in place where date usually is.

Bell Telephone Laboratories, published in BSTJ April 1935, 38 pages.
Condition: Very Good overall, light blue paper covers, stapled wraps, 3 hole punched at margin, slight fading at spine and edges, small pen marks on rear cover, small monograph format.
Price: $15.00
Item no. R180
Item Description
A method for designing a filter network to be distortionless over a given frequency range and to suppress all other frequencies.