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How does a NEW Gold Lion KT66 compare to the vintage HOLY GRAIL GEC KT66? - YouTube
Shuguang and Genalex Gold Lion KT-66 Vacuum Tubes - Jeff's Place
Shuguang KT66 valve
6P6P (6V6) Push-Pull Audio Amplifier
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KT66 Genalex Gold Lion Power Tubes
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AUDIO VALVES: KT66 CV321 CV1075 VT75(RAF) OUTPUT BEAM TETRODE – MULLARD MAGIC
