Soundlumia
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$399.75 USD
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Product Summary
Model: 1965/66 Mullard EL34 6CA7 (Made in Gt. Britain)
Soundlumia Tube Sound Rating: 9.5/10 - Exceptional
Date codes:
Xf2 B5L1 (B = Blackburn, GB, 5 = 1965, L = December, 1 = Week #1 of the production month)
Xf2 B6L2 (B = Blackburn, GB, 5 = 1965, L = December, 2 = Week #2 of the production month)
GM (Mutual Conductance) test result: 90%/101% of NOS/NEW
Silkscreen: 90% - 100%
Packaging: NEW white tube boxes.
Professional Tube Testing
This set was tested and certified by RoeTest V11 Professional Tube Testing System with the following result:
Tube 1:
Measured transconductance(GM): 9.88 mA/V - 90% (100% = 11.00 mA/V)
Measured plate current(IA): 70.04 mA - 70% (100% = 100 mA)
Tube 2:
Measured transconductance(GM): 11.13 mA/V - 101% (100% = 11.00 mA/V)
Measured plate current(IA): 93.14 mA - 93% (100% = 100 mA)
NO shorts, leakage or gas. NO noise or microphonics.
Curve trace is also included in the original RoeTest report.
NEW reproduction Mullard tube boxes.
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