Test & measurement
A resistor is a passive electrical two-terminal component that, as a circuit part, implements electrical resistance. Resistors are used in electronic circuits, among other uses, to adjust signal levels, to reduce current flow, to divide volta Show more
A resistor is a passive electrical two-terminal component that, as a circuit part, implements electrical resistance. Resistors are used in electronic circuits, among other uses, to adjust signal levels, to reduce current flow, to divide voltages and to terminate transmission lines. Here at SoundImports, you can buy fixed resistors from quality brands such as Dayton Audio, Jantzen Audio, Monacor and Mundorf!
The difference between fixed and variable resistors is that resistors are fixed only slightly with temperature, time or operating voltage. In comparison, it is possible to use variable resistors to change circuit components, such as volume control. However, we at SoundImports only offer fixed resistors.
Wirewound resistors are typically created around a ceramic, plastic, or fibreglass core by winding a metal wire, usually nichrome. Two caps or rings fixed to the core's ends are soldered or welded to the wire ends. There are wire-wound resistors with high and low energy. A ceramic outer case or an aluminium outer case on top of an isolating sheet is used with higher power wire-wound resistors. Such resistors are often referred to as "cement" resistors if the outer case is ceramic, though they do not contain any conventional cement. On the other hand, metal oxide film resistors are made of metal oxides, contributing to a higher working temperature and better stability and durability.
If you want to learn more about capacitors, please check out our detailed blog, "The basics of crossover components"! The blog also explains what you have to look for when choosing a resistor!