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1964 Amperex Bugle Boy 12AX7 ECC83 Tube - Hickok TV7B tests @ 45/46, min: 32/32 - José Martí Küba Dostluk Derneği
What are the chances that the 45 tube will ever be newly manufactured in mass quantities at a reasonable price? - Quora
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Otomon lab by ken uesugi mod. 45/2°3 s.e. tube - Otomon lab Integrated amplifiers for sale on Hi-Fi Di Prinzio
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