NOS RCA 6JU8 Vacuum Tube - White Box - Tested

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5CG8 RCA Medium-Mu Triode Sharp-Cutoff Pentode Vacuum Tube - NOS - TESTED

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1-6GH8A 6GH8 A Mixed Brands RCA-Sylvania-GE Ect. Vacuum Tube NOS/NIB Tested

NOS RCA 6AS5 Vacuum tube - White box - Tested