So, in this circuit:
Checking the diff alone, the waveform on the driven transistor looks just fine, not even needing compensation (not suprising; I wasn't expecting to need any with the 5179's anyway). But the opposite side (which is biased with a 100k pot (from +/-9V) bypassed to GND with 0.1uF), its collector waveform looks notably different. It has a long time constant (I forget what), which has nothing to do with compensation: in fact, adding 220pF across the emitters causes a steep peak which falls off, then rises up the slow slope!
BTW, I first tried the output cascoded (using 3904's for the bottom). Not very useful: it oscillated like heck. RF parasite at all times, weird squegging behavior, touch sensitive, etc. As shown seems to behave slightly nicer! ;-)
Tim
-- Deep Fryer: A very philosophical monk. Website @