A universal stroboscopic disc used to show the running speed of the turntable at 33 and 45 RPM with a spindle radius guide.
This is an accurate and easy to use turntable speed checker made by Audio-Technica in Japan. To use the Audio-Technica AT6180 Strobe Disc, place it over the spindle of your turntable and turn your turntable on. Then, watch the strobe ring under a normal fluorescent or LED light. It should be easy to see with silver and black markings. Next, adjust the speed control of your turntable until the bands in the ring appear stationary. Your turntable is now rotating at the speed that you selected.
Four speed support: 33 1/3, 45 RPM with 50 Hz and 60 Hz markings
Dimensions: 104 mm diameter (4.095 inches)
Weight: Approximately 8 g