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| Vintage Precise 111 Mutual Conductance Tube Tester Powers Up In case USD 250.0 Category : Tube Testers Seller : middlemansalesandauctions(5898, 99.5%) | | UN-TESTED WESTON 774-4 Vintage Analyzer Tube Tester USD 149.99 Category : Tube Testers Seller : brcexchange2000(4997, 99.9%) |