Silicon vs Germanium Vacuum tube audio amplifier

During Christmas I was visiting my parents and had interesting talk with my dad. He claimed germanium transistors do have "transistor sound" it is different and overall sound somewhat closer to vacuum tubes in that they sound softer and more natural because of different voltages they start to work at and other electrical characteristics and effects. He also said that these older germanium based designs just like vacuum tube ones used audio transformers which is responsible for part of vacuum tube audio characteristic presentation. He also had old vacuum tube radio and newer transistor and we listened to AM radio on them. Vacuum tube radio sounded entirely different and had zero - absolutely zero - of what I associate with how audio equipment sounds like while silicon transistor radio had it in excess. Even very good silicon transistor audio equipment still have this kind of sound even if minimized compared to these old and even new but cheap ones.

I was considering getting some fancy vacuum tube amplifier but after this talk I was interested in this germanium transistor thing. Lucky me there was 100% germanium amplifier from 1967, Coral A-7 in very good condition on sale. It was not particularly cheap but not super expensive either, about 260$. And it actually does sound like something else. Kinda like transistor sound I am used to but not quite it. It does have softer sound like advertised which in some ways resembles vacuum tubes but it is not it either. Overall I am very pleased with its sound, it is very different than anything else and sounds very good. It doesn't have a lot of power but for speakers I use it is more than enough.

What type of amplifier technology do you use?

I use valve and solid state, there is no option for that.

Here's the thing: With a high quality modern amplifier, it doesn't have a "sound" any more than a DAC or wire does. It's imperfections should be below the threshold of human perception. You can swap one good amp for another and not hear it at all.

I shun solid-state. I use steam. Gaseous-state is best.

BUT WHAT ABOUT MUH JITTER

Steam valves are the best. They operate way below audible range so you will hear no artifacts.

You are hearing the differences between even and odd order harmonic distortion usually when present if comparing valves and transistors. A compromise if you like valve is a good class a tranny that can switch to ab when the going gets tough.
That said if you like the valve distortion then stick with valve.
Germanium sure is an interesting material. Thomas Henry Moray had some very, very interesting peer reviewed results working with it But he never confirmed it was Germanium so research at your own risk.