but I mainly wanted to know about analog sampling scopes like the tek 661
which can accept sampling plugins. I've only found very little information
online about analog sampling scopes, and I'm reading the scope tutorial
handbook that you guys posted, but theres still a lot more things I would
like
to know about these scopes and how they're able to measure such high
microwave frequencies, and why they use 50 ohm inputs.
For 50 ohms explanation you need to read Tek's Concepts and Circuits books
on this topic. The two probe books are downloadable from here
There is one on Sampling Oscilloscope Circuits, downloadable from here
along with Sampling
Notes. All excellent examples of lucid technical writing of the highest
quality.
Enjoy
Craig
