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NOS Vintage Vacuum Tube 6U1 replace ECH81 for HIFI Audio Radio amplifier
Country: China
Brand: Shanghai
Tube type: Triode-Heptode Frequency converter Controlling (mu)
Identical to 6U1 = ECH81
Similar Tubes
Normally replaceable-slightly different: 6И1П
Base: Noval, B9A
Filament: Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
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