B170-V: Difference between revisions

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<gallery>
<gallery>
File:Tek b170-v top.jpg
File:Tek b170-v top.jpg
B170-V_1.jpg
B170-A_2.jpg
B170-A_3.jpg
File:Tek b170-v inside.jpg
File:Tek b170-v inside.jpg
File:Tek b170-v trimmed.jpg|Hand-trimmed resistors
File:Tek b170-v trimmed.jpg|Hand-trimmed resistors

Revision as of 20:50, 17 August 2021

The B170-V is a 170 Ω attenuator for the 517. Switches select from 0 to 64 dB of attenuation.

John Addis wrote:

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 1 GHz or so) rather than a bunch of Cs sitting on the connection from input to output.