solid state vs tubes

Magfan, here's a nice nutshell explanation that touches on this subject.

That there are capacitive elements of semiconductors should not come as a surprise to anyone- most tuners these days do not rely on variable capacitors to tune the station, instead they use variactor diodes, which take advantage of this capacitive element. Literally by changing the voltage (and thus forward current) on the device the capacitance changes and is useful as a tuning cap in the RF front end of the tuner.

Here's the link for the MOSFET capacitances (you can find many others on this site):

http://www.diyaudio.com/forums/tubes-valves/155106-ss-followers-drive-power-tubes-3.html#post2316318

Atmasphere, how is this "non-linearity" measured, and at what level does it become an issue?

Magfan the hp4062ux is a parametric tester used with probers to test wafers when they come out of the fab.

as i have stated before, my favorite amp is the conrad johnson mv 125. i am convinced that there does not exists a solid state amp that comes close to the cj.

i don't own the cj. i own a pair of vtl deluxe 120s.

based upon the comments so far , i am confident that i will not find a solid state amp which sounds like the vtls. that is , i would expect that in a blind test, i think i could identify the difference between my vtls and any ss amp.

thus, all i can do is listen to some more ss amps until i throw my hands in the air and give up.

i suspect i should look for class a amps for likely candidates.

incidentally, i once owned a pass aleph 0 and was using it with a pair of quad 63s.

i did not like the treble response and sold the amp.

From what I have read about the line, my impression is that CJ gear is not a line that can be emulated practically by SS in that it has a distinctive signature and less neutral tube sound. My impression of VTl is similar but perhaps not to the same extent.