Do you still need matched tubes if running a CCS ?

[piano3]

And of course I see after thinking about it that a CF with current source in the anode is total nonsense! However with CCS's in the cathodes I cannot see any way of implementing other that parafeed with the same problem of LC resonance discussed earlier in the thread but far less resistance to damp it.

 

[piano3]

Seems I have fallen into the same trap as many of the relatively inexperienced-no free lunch by simply connecting the load in the cathode! At least I have remedied my ignorance quite quickly!