Siemens
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Product Summary
Model: 1962 Siemens EL84 6BQ5 (Made in Germany)
Soundlumia Tube Sound Rating: 9.0/10 - Outstanding
Date codes: rX3 ‡0J (rX3 = EL84 Production Gen#3, ‡ = Munich, 0 = 1960, J = October)
GM (Mutual Conductance) test result: 100%/98% of NOS/NEW
Silkscreen: 90% - 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): 11.25 mA/V - 100% (100% = 11.30 mA/V)
Measured plate current (IA): 48.29 mA - 101% (100% = 48.0 mA)
Tube 2:
Measured transconductance (GM): 11.13 mA/V - 98% (100% = 11.30 mA/V)
Measured plate current (IA): 43.34 mA - 90% (100% = 48.0 mA)
NO shorts, leakage or gas. NO noise or microphonics.
Curve trace is also included in the original RoeTest report.
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