Fans of the sonic screwdriver might be interested to learn that occasional Doctor Who Companion contributor Brian A Terranova has produced an exhaustive history of the prop used on Doctor Who from 2005 to 2010 (with a brief return in 2013!).

Free to download, this is a 30 page PDF detailing the history of the sonic device wielded by the Ninth and Tenth Doctors. Research has been conducted using promo images, screencaps, chats with prop makers, and even the acquisition of genuine prop components.

Want to know more? All will be revealed by reading the guide.

To get your copy of The RTD Era Sonic Screwdriver: A Compiled History, head to Kasterborous and click the download link.

Want to know more? Here’s Brian chatting with Christian Cawley about the genesis of the sonic screwdriver guide.