I found a guy on ebay selling Tektronix P6063B passive probes. These are quite nice I think as they are like 12pF in x10 mode and have 200MHz of bandwidth.
Also, as they are proper Tektronix ones they have this feature where the scope can tell if they are in x1 or x10 mode and the scope will change the volts/div reading accordingly. Essentially the scope has two lights that glow through the skirt to show you what volts/div setting you are on. If it is in x1 mode it lights the left light and if you are in x10 mode the right hand one. It figures this out based on a 3rd connection on the skirt of the BNC connector.
Another thing I liked is they have a feature where they from the probe tip you can flick a switch and it grounds the signal so you can see the background noise level.
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