Thread: Late 1950s Zenith Deluxe Roayal 500 Radio
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  #21  
Old 08-30-2015, 08:26 PM
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rca2000 rca2000 is offline
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DO NOT think the 1U4 or 5 are radioactive..

Only tubes like the 0A2 B2, C3--etc.. I THINK these ARE radioactive....
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