This radio features “Loudness” (+power) and “Bass/Treble” knobs, both in fully functioning condition. The tuning and band dial works, however the tuning marker does not move along with the channel changing. This radio powers on just fine and I was able to find a couple different stations. In addition to the tuning marker, this radio may be in need of more maintenance. I have not found any further mechanical damage though. The 54 two-pronged power cord is in great shape. This is a model C845M with unit number printed on the bottom reading “666″. It measures 15.5″x9.5″x7.75. Please see all photos for condition. Thank you for looking and please be sure to visit my store for more unique vintage and quality brand name items! The item “Vtg 50′s Zenith High Fidelity AM/FM/FMC Tube Radio withPhono Input Works 666″ is in sale since Wednesday, May 23, 2018. This item is in the category “Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1950-59″. The seller is “relsdenarii414″ and is located in Columbus, Indiana. 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, Sweden, South Korea, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia.

• Country/Region of Manufacture: United States

35W4(1), 12BE6(1), 12BA6(1), 12AT6/12AV6(1), 50CS(1). Power output tubes are first mounted in test fixtures and burned in for 24 hours. This burn-in helps stabilize the internal operating parameters of the tubes before measurements begin. Each power tube is then tested and graded for technical characteristics specified by platinum tubes engineers. Tubes not meeting these criteria are rejected to the supplier or disposed of. Average tube life will depend on several parameters: product type, how the product is installed, loudspeaker efficiency, room size and acoustic damping, listening habits or average sound pressure levels, A. Line stability and purity, and other circumstances. Generally, preamplifier tubes last up to 5,000 hours, while power amplifier output tubes will last up to 3,000 hours. Near the end of their useful sonic life, aging vacuum tubes may degrade the sonic character of the product(s) they are used in. The sound may become somewhat dry and lifeless, with a noticeable decrease in harmonic richness or bloom. Bass response may be diminished, and musical dynamics may flatten out or compress. Toward the very end of their service life, tubes may become noisy, noticeable as a slight rushing sound or rustling noise. It is far better to replace vacuum tubes prior to the end of their service life, before severe sonic degradation or outright failure occurs. Running vacuum tubes into failure may damage to other internal components and cause needless repair expense. Factors which can shorten tube life include inadequate ventilation, overdriving loudspeakers at continuously high volume levels, severely fluctuating A. Sagging line voltage during summer peaks of air-conditioning demand, or severe interference pulses or electromagnetic interference. The item “Vintage 1950′s Zenith High Fidelity AM/FM/FMC Tube Radio S-46351 Working” is in sale since Saturday, September 23, 2017. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets”. The seller is “platinum_tubes” and is located in Canoga Park, California. This item can be shipped worldwide.

This radio features “Loudness” (+power) and “Bass/Treble” knobs, both in fully functioning condition. The tuning and band dial works, however the tuning marker does not move along with the channel changing. This radio powers on just fine and I was able to find a couple different stations. In addition to the tuning marker, this radio may be in need of more maintenance. I have not found any further mechanical damage though. The 54 two-pronged power cord is in great shape. This is a model C845M with unit number printed on the bottom reading “666″. It measures 15.5″x9.5″x7.75. Please see all photos for condition. Thank you for looking and please be sure to visit my store for more unique vintage and quality brand name items! The item “Vtg 50′s Zenith High Fidelity AM/FM/FMC Tube Radio withPhono Input Works 666″ is in sale since Tuesday, June 16, 2015. This item is in the category “Collectibles\Radio, Phonograph, TV, Phone\Radios\Tube Radios\1950-59″. The seller is “relsdenarii414″ and is located in Columbus, Indiana. 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, Sweden, South Korea, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia.

• Country/Region of Manufacture: United States