Double-Sided Turntable Tachometer & Cartridge Calibration Disc

Take the guesswork out of setting up your turntable with this precision Double-Sided Tachometer Calibration Disc. One side functions as a stroboscopic speed-measurement tool for detecting and adjusting rotational speed, while the other side helps you align and calibrate your cartridge and stylus position — so every spin of your LP vinyl records sounds exactly as the artist intended.

Whether you're a seasoned audiophile or just getting into vinyl, this handy calibration disc is an essential part of your turntable toolkit. Made in China.

Key Features

Double-Sided Design: One side for rotational speed detection, the other for cartridge head calibration.
Multi-Speed Compatible: Supports 33, 45, and 78 RPM detection and adjustment at both 50Hz and 60Hz.
Near-Regulation Weight: Constructed with approximately 180g disc thickness for stable platter performance.
Works in Standard Lighting: Designed for use under artificial light, including domestic fluorescent lamps with ballasts.
Durable Plastic Construction: Lightweight yet sturdy, built to last through repeated calibration sessions.
Large Diameter: 29.7 cm / 11.69 in — fits standard turntable platters.
Easy to Use: Simply place the disc on your platter, turn on your light, and adjust your turntable's speed control until the stroboscopic pattern on the disc appears stationary.

How to Use

Place the calibration disc flat on your turntable platter.
Turn on a 50Hz fluorescent or compatible artificial light source.
Start your turntable and observe the stroboscopic pattern.
Adjust your turntable's speed control until the pattern appears completely still — your speed is now perfectly calibrated.
Flip the disc to use the cartridge alignment side for precise stylus positioning.

⚠️ Important Tips:

The stroboscopic speed function must be tested under a 50Hz AC light source.

Cannot be used under DC-powered LED lights.

Please allow ±0–1 cm variance due to manual measurement.

Tachometer disc only — other accessories shown in product images are not included.

Specifications

Material	Plastic
Color	White
Diameter	29.7 cm / 11.69 in
Supported Speeds	33 / 45 / 78 RPM
Frequency Compatibility	50Hz / 60Hz
Quantity	1 Disc
Country of Origin	China

Package Includes

1 × Double-Sided Tachometer Turntable Calibration Disc

Complete Your Vinyl Setup

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Frequently Asked Questions

Q: What does the double-sided turntable tachometer calibration disc do?

A: This calibration disc serves two functions. One side is a stroboscopic tachometer that lets you visually verify and fine-tune your turntable's rotational speed at 33, 45, or 78 RPM. The reverse side is a cartridge alignment guide that helps you accurately position your stylus and cartridge for optimal sound reproduction from LP vinyl records.

Q: What light source do I need to use the stroboscopic speed disc?

A: The stroboscopic pattern works correctly under a 50Hz AC-powered light source, such as a standard incandescent or fluorescent lamp with a ballast. It is not compatible with DC-powered LED lights, as these do not produce the AC flicker frequency needed to animate the stroboscopic pattern.

Q: Is this calibration disc compatible with all turntable sizes?

A: The disc has a diameter of 29.7 cm (11.69 in), which is sized to fit most standard full-size turntable platters. It is suitable for any turntable running at 33, 45, or 78 RPM and operating on either 50Hz or 60Hz power systems.

Q: What is included in the package?

A: The package includes one (1) double-sided tachometer calibration disc only. No other accessories — such as stylus gauges, headshells, or additional tools pictured in product images — are included.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.