1948 Zenith radio phonograph playing records
This is my Zenith radio with phonograph attachment playing a program of 5 78 rpm records. This is the model with the tandem tonearms piggybacking each other as opposed to the dual tonearms, each on opposite sides of the turntable. Only the red 78 rpm tonearm was semi-automatic, (it did`nt shut off at the end of the last record, it would just play the last record over and over until the listener shut it off manually). The green 33 1/3 tonearm was totally manual and the record changer was`nt designed to work with this speed. The owner of the unit had to place the records on the turntable and place the needle on the beginning of the record and lift it off at the end. I believe this is the earlier model. The records I chose to play was Mona Lisa by Nat King Cole on Capitol, My Blue Heaven by Glenn Miller on BlueBird, Toot,Toot,Tootsie by Al Jolson on Decca, I`m Sittin On Top Of The World also by Al Jolson on Decca, and When My baby Smiles At Me by Ted Lewis And His Orchestra on Decca.
Comments
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Maravilha!!! Parabéns!!!!!!!!!!
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there is a solution that repairs plastic crack like that one
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I'm grateful for this video and its information. Got me amused! Greetings from Argentina.
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I love the songs you are playing. I used to have 78's, but I want to re-start my collection.
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A jump in the past.., nice!!
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Cobra-matic tone arms were so neat to look at.
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Glenn Miller doing My Blue Heaven
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I have one that needs a new plug. Is that hard to replace?
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Can it still play an LP with the green arm?
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how come you don't get copyright strikes on this like everybody else does?
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That warm sound that you get from this 1948 Zenith is awesome! This sound does not even begin to compare with today's "digital" music that so many are into these days. Also, great choice of 78s...especially "The World's Greatest Entertainer: Al Jolson"!
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Who on earth told Al Jolson he could sing? It must have been Helen Keller. GAWD.
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is it possible to show this unit playing a 33 rpm record thank you for all your posts they are great
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thank you for posting such a gem of a console . this sounds so rich and crisp . great unit as with all your other pieces . vintage electronics is always the best it is built to last and the sound is wonderful . thank you for all your postings I look forward to seeing what you post next
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This is the first time I saw a Zenith Cobra turntable with 2 tonearms-one for 78s, the green one for LPs all on the same side. Old Wurlitzer jukeboxes used the same Zenith Cobra pickup system.
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Sometimes you can hear amateur radio and Morse code detected by the oscillator circuit. Isn't often, but once in a while. Furthermore, sometimes it'll heterodyne, and you'll hear whistles as you move the needle. Somewhat annoying. Zenith electronics and resulting sound are very impressive. Owning a Zenith is a thrill!
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This greatly reduces surface noise. It also requires extremely small force to move, which reduces needle 'chatter' and distortion. Zenith also put a bit of a filter on the output of the circuit to further reduce surface noise. The result is very impressive. With the filter removed, the fidelity is quite nice, though not near a crystal cartridge. Still very nice and listenable. A stereo crystal or magnetic cartridge wired mono also has similar results.
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The Zenith Cobra is an amazing thing. Small stainless steel paddle changes inductance of coil it is next to. This changes the frequency in an oscillator that also acts as a slope detector. The resulting varying DC voltage is a product of the difference between the preferred frequency and the frequency the oscillator is actually producing. Sent through a capacitor this varying DC becomes AC to the next stage--an audio signal. The paddle only responds to horizontal modulation, not vertical.
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maybe, but i don`t know enough about electronics to say. All I do k now is that I had to put in a new stylus in the 78 rpm tonearm cartridge because my old one finally went on me.
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I bet this has the Radiotronic cartridge.
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