My periodic table poster is now available! Tantalum wire. This spool once contained 980 feet of fine tantalum wire. Somewhat less now as I've used some of it. Source: eBay seller avitarunlimited Contributor: Theodore Gray Acquired: 8 February, 2009 Text Updated: 8 February, 2009 Price: $50 Size: 0.01" Purity: 99%