• Schematic: Steam Tonk Controller
• Item Level 55Disenchants into:
  Not disenchantable
• Binds when picked up
• Requires Engineering (275)
• Use: Teaches you how to make a Steam Tonk Controller.
• [Steam Tonk Controller]
• Requires Mithril Bar (3), Gold Power Core (1)
• 1 Charges
• Sell Price: 20
• Vendor 80

Source

This item is sold for 80 in limited quantity from the following vendors:

• Gearcutter Cogspinner in Ironforge
• Sovik in Orgrimmar

This item is a quest reward from  [70] 40 Tickets - Schematic: Steam Tonk Controller.

Patch changes

• Patch 2.3.0 (13-Nov-2007): Has been made purchasable from vendors in Orgrimmar and Ironforge. 
  
• Patch 1.10.0 (28-Mar-2006): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB