Amazon Riverstone Audio  
02-07-2017 03:31 pm
Riverstone Audio Record-Level Turntable Stylus Tracking Force Gauge/Scale, 0.005g Resolution, Measures VTF at Correct LP Record Level Height (2 mm to 3 mm) Color: Silver
A Professional digital tracking force gauge designed for vinyl record purist's interested in precise measurement of vertical tracking force (VTF) at the correct vertical height (height changes the vertical tracking angle VTA of a tonearm). When used with the detachable cantilevered extension arm, the gauge closely approximates the vertical position of the stylus on the surface of a vinyl record when it is playing on a turntable - providing accurate “RECORD-LEVEL” measurements of tracking force.
For optimal accuracy, tracking force should be measured at the same vertical position as the record surface. With Riverstone's VTF gauge, tracking force is measured 2 mm - 3 mm from the surface of a turntable mat - the height of a stylus tip resting on an LP record (LP's have a thickness range of 1.9 - 2.9 mm). With less expensive gauges, the measurement distance is typically 6 mm to 9 mm.
Precision strain gauge sensor provides 0.005 g measurement resolution and accurate measurements over the entire calibration range of the VTF gauge. To ensure accurate VTF measurement, our VTF gauges undergo a rigorous multi-point calibration procedure to verify the linearity, repeatability and accuracy of the VTF measurement. We have confidence in our gauges and provide TWO calibration masses (5g and 20g) to verify the readings at any time and also allow for future re-calibration if needed.
Manufactured using non-magnetic materials to minimize interactions with MM and MC cartridges. The housing of the VTF gauge is manufactured from a durable plastic. The cantilevered extension arm is made from a non-ferromagnetic grade stainless steel and the locking screw of the extension arm is made from brass. A polymer pad protects the stylus tip and allows stylus centering on the measurement platform.
The gauge is designed with two lev
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