Single
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Various 6X4$10.50
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Sovtek 5V4GT$11.40
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JJ/Tesla 6CA4 / EZ81Out of stock
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Electro-Harmonix 6CA4$14.26
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Various 6X5GT / EZ35$15.00
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Sino 5U4G-CHZ$15.00
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Various 5U4GB / 5AS4A USED$15.00
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Electro-Harmonix 5U4GB$15.69
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RCA 6X5GT / EZ35$16.00
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JJ/Tesla 5U4GB$17.00
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Sovtek 5Y3$17.65
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Sino 5AR4/GZ34-CHZ$18.00
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Cetron 5R4WGB JAN$18.00
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Sovtek 5AR4/GZ34$21.00
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JJ/Tesla 5AR4/GZ34Out of stock
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TungSol 5AR4/GZ34$32.00
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Various 5U4GB$39.50
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Mullard 5AR4/GZ34$41.05
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Genalex U77/GZ34 Gold Lion$42.85
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Svetlana 5U4GOut of stock