1x Mullard EF86 6267 Long Mesh Plates Square Getter -Minwatt Label-Blackburn '56
$128.95
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Product Summary Model: Mullard EF86 6267 (Made in United Kingdom) Soundlumia Tube Sound Rating: 9.0/10 - Outstanding Lush and warm vintage tone, intimate vocals, wide sound stage with layered details Date code(s): 9r1 B6E (B = Blackburn, GB, 6 = 1956, E = May) GM (Mutual Conductance) test result: 82% NOS Silkscreen: 100% Packaging: NEW white tube boxes Professional Tube Testing This set was tested and certified by RoeTest V11 tester with the following result: Tube 1: Measured transconductance(GM): 1.65 mA/V - 82% (100% = 2.00 mA/V) Measured plate current(IA): 2.56 mA - 85% (100% = 3 mA) NO shorts, leakage or gas. NO noise or microphonics. Curve trace is also included in the original RoeTest report.
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