Dear all, I'm happy to announce the birth of the [b]KeyStrobe-[i]au[/i] Gold disc;[/b] [img]http://www.keystrobe.com/Keystrobe/KeyStrobe-au_files/DSCF0759.jpg[/img] * A solid double-sided disc produced using a novel method, for speed calibration of the highest accuracy. *100mm diameter, it can be placed on top of a record label for accurate calibration with stylus drag taken into account. *Pure gold markings against a matt black background give a warm yet clear speed indication. *May be illuminated by AC mains lighting, but for best functionality and accuracy use a current 50Hz+60Hz KeyStrobe strobe light. *It is not generally appreciated that vinyl recordings were mastered at slightly different speeds in different parts of the world. With markings on both sides, discs mastered in 50Hz or 60Hz areas can have their speed optimally set. (Requires KeyStrobe strobe light). May be purchased at [URL]http://www.keystrobe.com[/URL] or eBay. We ship worldwide and have a money back guarantee of satisfaction. [i]PayPal; combining postage: If purchased with a KeyStrobe strobe light on the same day, the postage of one will be refunded to you by PayPal. Alternatively just ask to be sent a combined invoice.[/i] Happy listening! John [img]http://www.keystrobe.com/Keystrobe/KeyStrobe-au_files/DSCF0755-640.jpg[/img]