You'd have less loop gain available, for a given closed-loop gain. I haven't done any calcs but my guess is you'd end up with a bit more distortion overall (because most distortion comes from the output stage), and definitiely higher output impedance. But if you're one of those people who likes the idea of 'low-feedback design' then go for it, it's a very forgiving topology.
I prefer the sound in triode with no feedback. For UL operation I suppose I would prefer low feedback.
So a 6SN7 would be OK? If it were triode operation, lower gain in the first stage would be an advantage. So the 6SN7 could work with either UL or triode.
So a 6SN7 would be OK? If it were triode operation, lower gain in the first stage would be an advantage. So the 6SN7 could work with either UL or triode.
It would be 'OK' in the sense that it will still make a functional amplifier. It's a simple topology, very easy to tweak. Simple circuits have simple shortcomings.
(At this point you will get a dozen people in this thread telling you to replace literally every resistor with a CCS because reasons. Don't let them overwhelm you)
(At this point you will get a dozen people in this thread telling you to replace literally every resistor with a CCS because reasons. Don't let them overwhelm you)
Don't worry, I don't use any active loads, just resistors. Resistors sound better for my tastes.
Thanks Bela for the simulation in triode. Do you have any views on UL operation?