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Vacuum tube (amplifier) output transformer 7K output cattle EBL21 EL41 E80L output power 10W frequency response: 20-50KHZ -1DB - AliExpress
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10W 7K Vacuum tube (amplifier) output transformer , EBL21 EL41 E80L output power 10W frequency response: 20-50KHZ -1DB - Newegg.com
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