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1x Valvo EF86 O-getter Mesh Plates - Mullard Label - Hamburg 1969 - NOS
1x Valvo EF86 O-getter Mesh Plates - Mullard Label - Hamburg 1969 - NOS
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Product Summary
Model: 1969 Valvo Hamburg EF86 6267 O-getter Mesh Plates (Made in Germany)
Soundlumia Tube Sound Rating: 9.0/10 - Excellent
1960s Hamburg production - The real King of Bass - Unparalleled musicality with great substance and weight in midrange presentation
Date codes: D9E1 (D = Hamburg, 9 = 1969, E = May, 1 = Week 1 of the production month)
GM (Mutual Conductance) test result: 95% NOS
Silkscreen: 95% - 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): 2.36 mA/V - 118% (100% = 2.0 mA/V)
Measured plate current (IA): 3.745 mA - 125% (100% = 3.0 mA)
NO shorts, leakage or gas. NO noise or microphonics.
Curve trace is also included in the original RoeTest report.
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