variable capacitor การใช้

• Most radios use a variable capacitor; older automobile radios often used variable inductors.
• Vacuum variable capacitors are generally more expensive than air variable capacitors.
• Vacuum variable capacitors are generally more expensive than air variable capacitors.
• Variable capacitors are considered of the highest quality when they have silver-plated plates.
• Older models would realize manual tuning by means of mechanically operated ganged variable capacitors.
• Likewise, variable capacitors using air as a dielectric are vulnerable to vibrations moving the plates.
• Variable capacitors can be constructed by using moving plates.
• Variable capacitors with their plates open to the atmosphere were commonly used in radio tuning circuits.
• Nowadays with electronically-tuned radios, the variable capacitor is more often a varicap than a physically-adjustable capacitor.
• Other Cyldon products included other toys, reels for magnetic tape and cine film, and variable capacitors.
• The glass wafer is then boned with the silicon substrate to form a variable capacitor array.
• A "'variable capacitor "'is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically.
• Variable capacitors are often used in reactance, e . g . for impedance matching in antenna tuners.
• Emmerich et al . fabricated the variable capacitor array on a single silicon substrate with comb-figure structure.
• In a Colpitts VFO, the voltage divider contains the variable capacitor ( either C1 or C2 ).
• The most simple form of the device is a variable capacitor with a coil wired across its terminals.
• The tracking can be done with a multi-section variable capacitor or some varactors driven by a common control voltage.
• Low cost variable capacitors squeeze together alternating layers of aluminum and plastic with a phase-locked loops, amongst other applications.
• Their variable capacitor designs quickly became industry standards, and the component's schematic symbol was adopted as the company's logo.
• One of the windings of the transformer had a variable capacitor connected across it to make a tuned circuit.