Variable capacitor

Passive components · Tuning gang · trimmer

Air-dielectric tuning capacitor · 10 pF – 365 pF · now 187 pF

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.

Pins

• Rotor
• Stator

Ratings and limits

How to use it

With a coil it tunes a radio: f = 1 ÷ (2π√(LC)). A 365 pF gang and a 240 µH coil cover the AM broadcast band (530–1700 kHz).

Lessons and builds that use it

• Crystal radio

More in passive components

• Resistor
• Potentiometer
• Photoresistor (LDR)
• Electrolytic capacitor
• Supercapacitor
• Film capacitor
• Toroidal inductor
• Ceramic capacitor
• Axial choke
• Ferrite bead