Tagalog: draft — for Kate / Janet to check. A 1 kΩ pot and a 9 V battery, as in the source video.
Joystick = dalawang pot. Servo, volume, power supply. A gamepad joystick is two pots (up/down, left/right). A servo has one inside.
Track na resistive + wiper. Pin 1–2 + pin 2–3 = kabuuan. The two halves always add up to the total printed on it (1K = 1,000 Ω).
B = linear (ilaw, signal). A = log (volume). B: linear, for lights and signals. A: logarithmic, matches the ear for volume. Letters vary by maker: measure it.
Ang wiper ay nakakakuha ng bahagi ng boltahe. Hindi ito power supply. The wiper taps any voltage along the track. Connect a load and the voltage sags, so it's for signals, not power.
Dalawang pin lang: kumokontrol ng kuryente. Laging may resistor na pang-protekta. Two pins controls current. Always add a fixed resistor so the wiper at the end can't short the circuit.
Rotary, dual, multi-turn, slide, trimmer. "103" = 10 kΩ. Three-digit code: two digits then the number of zeros.