Resistor Question

[TIMBO]

Hi guys, Can a 12AX7 preamp valve share a cathode resistor but have different value plate resistors.
Thanks

[shooter]

on the DC side, don't see a problem as long as you don't exceed the tubes Max dissipation
on the signal side, unsure of the outcome 

[SILVERGUN]

on the signal side, unsure of the outcome 

You wont want to share the cathode of 2 gain stages where one stage feeds the other. This is a cause of oscillation.
If they are 2 separate signal (channel) paths then have at it.