MM cartridge | Article about MM cartridge by The Free Dictionary
phono cartridge (redirected from MM cartridge)
phono cartridgeThe component in a phonograph turntable that holds the stylus, which is a needle attached to a cantilever arm. The vibrations of the stylus are transferred into electrical energy by a magnet inducing current into coils; one coil for the left side and one for the right. "Moving magnet" cartridges have the magnet attached to the end of the cantilever, while "moving coil" cartridges place two tiny coils on the end. In either case, the arm acts like a vibrating magnet.
Earlier phono cartridges were ceramic and used the piezoelectric effect to create the electrical signal. The cantilever end of the stylus arm actually contacted the ceramic base, which picked up the vibrations (see piezoelectric). See stylus.
MM Vs. MC Cartridges
Moving magnet (MM) cartridges employ a tiny magnet on the stylus armature that induces a current into two coils as the stylus moves in the groove. In a moving coil (MC) cartridge, the reverse occurs. The coils are attached to the moving armature and induce a current in the magnetic field. Hotly debated as to which method sounds better, high-end phono cartridges tend to use the moving coil (MC).
|The Phono Cartridge|
|The cartridge is attached to the end of the tone arm on a phonograph turntable. A legacy system for sure, but there are thousands of people with huge vinyl record collections, and turntables and cartridges are still made.|
References in periodicals archive
Contract award: "9x19 mm cartridge
with regular bullet", "9x19 mm cartridge
subsonic" and "7.
The Chassepots were converted to fire the Gras I mm cartridge
Around 50 empty 8- mm cartridge
shells were found on the ground after the injured were rushed to different hospitals in Greater Noida, the sources added.
56 mm cartridge
can't penetrate this type of barrier at any range.
ARDEC also requested "foreign comparative test" funds from the Defense Department to qualify a new 40 mm cartridge
45-calibre Automatic Colt Pistol (ACP) cartridge with its combat-proven stopping power in favour of the lighter 9 mm cartridge
launched a controversy that still continues.
The FIR magazine boxes are actually fitted with spaces to adapt them to the shorter 51 mm cartridge
7x28 mm cartridge
as well as the Five seveN USG handguns and the new and upcoming PS 90 semiautomatic carbine.
subsidiary, the Bull's EpochBackup VI sequential storage subsystem now includes a half- inch tape library and 8 mm data wheel in addition to its existing 8 mm cartridge
Late word has it that Winchester is about to unveil a new 7 mm cartridge
for the Angle Eject based on a necked down .
Tenders are invited for Supply of Box Packing 130 Mm Cartridge
7 mm cartridge
(for big machine gun), 34 cartridges for rifles, 2 wires 7.