I notice some slightly doubled up lines for each curve. Some tube hysteresis factor or capacitance in the test setup maybe? Someone even mentioned recently an article by Norman Crowhurst about the absolute limitations of VT amplification accuracy due to vaccum tube hysteresis. But those doubled up lines look a bit too perfect for that.
And the clean separation of the curves at the bottom don't look like typical tube curves.
Some Mosfet contraption likely.
And the clean separation of the curves at the bottom don't look like typical tube curves.
Some Mosfet contraption likely.
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Ok, it's not perfectly linear, but it's pretty good right?
Looks like ECC83 and yes, they look fairly good.
That's a pretty good approximation to an ideal triode, which is a voltage-controlled voltage source with series resistance Rp.
Curiously, the triode is the only amplifying device known with an effective voltage source inside, though it's usually a pretty bad source in the greater scheme of things (Rp in kohms).
Tim
Curiously, the triode is the only amplifying device known with an effective voltage source inside, though it's usually a pretty bad source in the greater scheme of things (Rp in kohms).
Tim
What do you think of this for a near-perfect linear triode?
I think I'll copy SY and let you guess what it is!
Do you mean this right-handed one?
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