Tektronix SD-24 dual channel TDR/sampling head

[bozidarms]

For some time i was on looking for one SD-24 head, and finally i got one.
That was mine third one, but this time a real winner!
All measurements are far better than stated - i presented some here.
In the case of such old devices, it is necessary to test them beforehand and sometimes you will be rewarded with real gems .
Good measurements values may also be correlated with relatively newer CSA830A, mine has a little bit over 1000 working hours.