. Electronic apparatus for biological research . 1/2 Ci Figure Figure There is, however, a special band-pass section, which is shown in Figure in the T form, and in Figure in the pi form. The design equations are 2R COa COi (ft>2 — COj)R L,= C,= (cog — a)i)R 20i^CO2 CO2 — ft)j Vz/Lz 1/2/.J ^ 2ft>ia>2^ nmnnnnn

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