component tester shematics?

[opal]

Hi there!
i plan on building a small but usefull component tester to use with my oscilloscope.
i found two shematics so far:

I----------------O---------X.......................I----10K---------------X
I............(component)............................I...............I
I....................O---------Ground..............I...............O
ac12v.............I...................................ac6v....(component)
I...................10K..................................I...............O
I....................I.....................................I................I
I---------------------------Y.......................I-----20R--------------Y
............................................................I
..........................................................Ground

i look for more sophisticated shematics, more extra funktionality
then just using different R?
Thank you for your time,
opal...opalmail EHT gmx DOHT de