Use variable capacitors to filter out frequencies that are not part of the main signal. These components generally have metal plates to hold different charges. A variable capacitor is a perfect tool in situations such as radio tuning, where applications need adjustment in capacitance.
When looking at variable capacitors for purchase, it's important to consider the many different styles including: vacuum variable capacitors, a high-power variable capacitor and the air variable capacitor. See which one works best for you.
1. Vacuum variable capacitors, which use a high vacuum rather than air or any other insulating material as the dielectric, allow for a higher voltage rating.
2. A high-power variable capacitor is advantageous in radio frequency applications.
3. An air variable capacitor, which consists of a rotating blade that varies capacitance with movement and a stationary blade, supports the blade with an electrically insulating framework.
Lower the variable capacitor price with used or refurbished equipmentInstead of hunting through variable capacitors for sale, use rented or refurbished equipment. This not only saves on initial costs, but also gives you a chance to test the products to see what works best before making a solid purchase. Consider renting from companies who offer an option to buy, if you are satisfied with the capacitor.
Consider variable capacitor manufacturers who offer a variety in productWhen you buy variable capacitors look for a variable capacitor manufacturer that carries numerous designs to find the equipment which best suits your purposes. Specifically look for companies constantly expanding inventory, and ask what new products are available in the near future.
Have a manufacturer design custom air variable capacitor kits and other variable capacitor productsSit down and consult with a manufacturer about specifications and expectations when you buy variable capacitors. Make sure the manufacturer offers support for the product.
- When considering variable capacitors, remember the charges in the capacitors change according to the amount of space in between the plates.