170 Ohm Step Attenuator - Tektronix 011-017 Type B170-A

Description

Referring to the schematic of the switched attenuator, "The inductors compensate for the switch stray capacitances. When the Ls and the stray Cs are connected like that, they constitute a lumped element delay line. The intent is not to make a delay line, but compensate out all the stray Cs by making a lumped delay line out of it. That extends the bandwidth and makes the impedance 170 ohms (up to 1GHZ or so) rather than a bunch of Cs sitting on the connection from input to output."(per John Addis - who was an engineer and worked for Tektronix)
Unit is untested so sold
AS IS
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