Four, Zenith Tube Radio Push Button Original Knobs. These knobs will work on Zenith 7S529 and various other models. The item "Four, Zenith Tube Radio Push Button Original Knobs 7S529" is in sale since Thursday, August 23, 2012.This item is in the category "Collectibles\Radio, Phonograph, TV, Phone\Radios\Parts & Tubes". The seller is "mcoco2004" and is located in Chicago, Illinois. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Bahamas, Uruguay, Antigua and barbuda, Bolivia, Sri lanka, Macao, Reunion, Russian federation.