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Airtangent 2002 Linear-Tracking |
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Air-Bearing
Sleeve Ultra high precision aluminium air-bearing sleeve. It is extremely rigid and light. The air-bearing sleeve is massive - a total of 78cm2 - with an air film just 25 micron thick (=one fortieth of one millimeter) for exceptional stability and zero friction. Even with the air supply turned off the arm appears to have negligible play with respect to the air-beam, so close are the manufacturing (sub-micron machining) tolerances. The arm-tube is attached to the sleeve. A sliding counterweight on the opposite side of the air-bearing sleeve balances the cartridge and the arm-tube to provide the required VTF. Three different counterweights are included for optimum performance with all cartridges. The air-beam is suspended only at one end, the other end is free, allowing the air-bearing sleeve to be easily slid off. Whole tonearm assemblies, may be changed over if more than one cartridge is to be fitted, as each can be individually set and counterbalanced. |
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