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VintageCTS 12\" alnico 5 full range speaker in nice clean and perfectworking condition. impedance 16 Ohm, 12 to 15 W, best for tube amplifier or guitar speaker.date code 137 7004 made by CTS in the 4th week of 1970. Part # 985-010648-001
From 30\'s to 70\'s, US leading speakers manufactures were Rola, Jensen, CTS, Oxford, Utah, they were closed in 80\'s since cheap ceramic Ferrite speakers came from Japan and Asia.so it\'s the time to collect quality Alnico speakers made in 50\'s , 60\'s. 70\'s Those vintage quality 12\" speakers took from Organs or HiFi Consoles as RCA, GE, Magnavox, Philco.
In 1944, Alnico 5 first used for siug type of permanent magnet speakers to reduce about 30% weight of same magnet from Ring type speakers as sameperformance.in 50\'s, alnico 5 slug type speakers became the leading products in speakerindustries. for example, Jensen concert DP-ALNICO-5 15\" speaker is slug type magnet with alarge bowl cover.so, these are the best alnico 5 speakers manufactured by CTS for tube amplifiers.
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