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Mullard

1x Mullard EF86 6267 Long Mesh Plates Square Getter - Valvo Label- Blackburn '58

1x Mullard EF86 6267 Long Mesh Plates Square Getter - Valvo Label- Blackburn '58

Regular price $114.00 USD
Regular price Sale price $114.00 USD
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Sound Sample:

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 B8B (9r = EF86 long plates, B = Blackburn, 8 = 1958, B = February)

GM (Mutual Conductance) test result: 100%/105% 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): 1.55 mA/V  - 78%  (100% = 2.0 mA/V)
Measured plate current (IA): 2.282 mA - 76%  (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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