Resist: uncle Wen
Resistance is the "stable uncle" in the circuit. It can load, limit current and help you step down!
Capacitance: magician
Capacitor is the "magician" in the circuit, which can filter, phase shift and couple to make your circuit smoother!
Potentiometer: master of adjustment
Potentiometer is the "master of adjustment" in the circuit, and its name explains its mission-changing the output potential!
Diode: one-way champion
Diodes are the "one-way champions" in circuits. It can switch, rectify, detect and stabilize voltage. Very versatile!
Triode: signal master control
Triode is the "signal master" in the circuit. It can amplify signals and can also be used as a switching element. It's an all-around player in the circuit!