> In the unlikely event I need 50 Ohm I use a T =A0and =A050 Ohm terminator.
> I've never seen scopes with a 50 ohm switch, what make/model/bandwidth?

My LeCroy 9354CTM does. It's a four channel 500MHz. The impedance is
selectable between 1M and 50 ohms. I can also select the probe
attenuation between 1 and 10k with about 10 steps in between
(2,5,10,etc).

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