Shure SFG-2 Stylus Tracking Force Gauge
- Precise, 0.05 gram increment scale measures force of stylus on record
- Prevents mistracking, excessive record and tip wear and poor sound reproduction
- For use with all Shure and other brands of turntable stylus
- Tracking force is measured with tone arm in actual playing position.
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From the manufacturer
Shure's Highly Accurate Beam Balance
The Shure Model SFG-2 Stylus Tracking Force Gauge is a highly accurate beam balance that is designed for measuring stylus tracking forces from 0.5 to 3.0 grams in 0.05 gram increments. Its rolling bearing pin pivots are engineered for minimal friction. Each SFG-2 Tracking Force Gauge is factory calibrated.
- Ensure that your turntable is on a level surface and that its platter is level.
- Place the SFG-2 on your turntable platter so that the turn-table spindle fits into the vee notch of the SFG-2, as pictured above. For better stability, you may instead place the SFG-2 on top of an LP record. Temporarily set anti-skating controls on your turntable or tonearm to zero.
- Position the sliding weight on the SFG-2 at the tracking force that you would like to set for your tonearm (measured in grams). For forces over 1.50 grams, set the weight to half the desired force.
- Carefully lower the tonearm and cartridge so that the stylus rests in one of the grooves on the lever arm. If you dialed in the force desired, use the groove labelled “TIMES 1"; If you dialed in half the desired force, use the “TIMES 2" groove, as illustrated below.
- Carefully lift the stylus out of the groove and adjust your tonearm's counterweight to reduce or increase the tracking force as necessary. Adjust the tracking force until the white pointers, visible in the mirror, are edge to edge.
- When finished, reset any anti-skate adjustments according to your tonearm or turntable manufacturer's instructions.
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|Item Dimensions||14 x 24 x 6 in||1.69 x 3.82 x 0.79 in||1 x 6 x 1 in||2.36 x 4.72 x 0.67 in||4 x 22 x 6 in||11.97 x 11.97 x 0.08 in|
The Shure Model SFG-2 Stylus Tracking Force Gauge is a highly accurate beam balance that is designed for measuring stylus tracking forces from 0.5 to 3.0 grams in .05 gram increments. Its rolling bearing pin pivots are engineered for minimal friction. Each SFG-2 Tracking Force Gauge is factory calibrated.
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Description and Use: Balance scale just like at the gym. The unit is placed on the turnable mat extending from center to edge. The weight is adjusted from 1-3 grams. Tonearm is lowered and needle placed in the gauge groove. measurement taken. Tonearm lifted, tonearm weight adjusted. Repeat.
The stated tolerance on this gauge is +-0.1 grams. For the tech, that's pretty darn good, and for the price is outstanding. I can easily say this gauge has saved me from buying a new cartridge that much sooner. And heaven knows how much it has helped extend the life of my records.
1. Value for dollar unsurpassed. Consumer reports best buy or Stereophile three dollar signs, take your pick.
2. Reasonable accuracy, especially for moving magnet cartridges, which seem (at least to me) less sensitive to weight differences than Moving coil. Your ears may vary.
1. Balance point is a metal pin on a plastic platform. When I used it, because of such low weights (1-3g.), I sometimes questioned the accuracy of the device, as it seemed to get stuck at either end of the scale. A metal platform would reduce friction and (I think) have more accurate results. However, it easily showed my tonearm was waaaaay overweighted.
2. Balance indicator can be difficult to read. The balance indicator is merely a small (approx. 1/8" wide by 1/2" deep) black platform. The other end of the balance scale floats up or down in accordance with your desired weight and the tonearm weight. When viewing the balance indicator front on, this 1/8" wide nub can be difficult to tell how far off you are. If you have vision issues, you may want to look elsewhere.
Overall a very nice addition to my setup. Way overdue as a matter of fact. My recommendation is a tracking gauge is a REQUIRED piece of equipment. This will work with acceptable accuracy. Better options are available (digital) but only you can say if you want to spend way more to get a more precise result. Also remember you are going to have to adjust your counterweight on the tonearm, which was hassle enough. More precise scale will require smaller adjustments to your tonearm. The real question is: Is your tonearm good enough for a digital tracking force gauge?
Turns out I was a like .45 grams over 2.0 grams, which was set by strictly using the marks on the tone weight.
Don't know how much of a difference this adjustment made, but for my first "serious" Vinyl setup I am quite happy with the results. The scale is super easy to read, at first I wasn't quite sure how it worked, but once you set the scale on the turntable it all makes sense.
My only note would be to not put the scale on a record, I think it needs to be on the turntable itself. Dunno how much difference it makes, but when you're talking tenths and hundredths of a GRAM, I guess every little bit is important.