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Attenuator design

Attenuator design

Attenuator design

(OP)
Hello,
I am trying to design some pi and t attenuators using passive components. I can design quite easily for a matched source and load impedance but I'm having trouble with a mismatched source and load.

Is there any methods to match the source and load impedances?

Will I have to somehow recalculate the resistor values?

Many thanks for any help

Fg45

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