My question is….

I’m a relatively new Ham, Tech in March and General in August and have a Kenwood TS 2000, still reading the manual.

I’m studying the history of Ham radio and basic electronics, have some electronics understanding, Ohm’s law, physics in college but woefully inexperienced in dealing with amplifiers, transistors and other elements of circuits. I’ve looked at the original De Forest 1906 two-element and 1907 triode, its design and what happens from the heated cathode, space change of electrons that are attracted to the anode plate that creates current. I understand how a crystal diode rectifies RF/AC to DC to run earphones in an Xtal set and how capacitors/V- caps, tapped coils, antennas and grounds work with Xtal sets. I remember and fairly understand how the early tubes (red glow) rectified AC to DC in charging batteries and that rectifiers are now substituted in modern battery chargers.

My question is–how does the triode amplify? I can read what it does but does it increase voltage or current or both or simply rectifies current? If someone answers the question, be sure to be concrete in an answer as I am dense at times with my 65-yr old brain.
KF5FJZ
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You can see : http://www.m6ctu.com/stu_ecmp.html

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