🎚️📶

#potentiometer #slider #variable resistor #fader #level slider #signal control #electronics #dimmer

🎛️📶

#potentiometer #knob #variable resistor #control knob #signal control #level control #electronics #dimmer

⚙️🚦⚡️

#transistor #electronic gate #signal control #switching #logic gate

🔘📡👆

#remote button #wireless switch #clicker #actuator #transmitter #signal control #garage remote