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Valvo

Valvo EL84 6BQ5 Matched Pair - Hamburg 1958 rX3 - Strong

Valvo EL84 6BQ5 Matched Pair - Hamburg 1958 rX3 - Strong

Regular price $127.50 USD
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Sound Sample:

Product Summary

Model: 1958 Valvo EL84 6BQ5 (Made in Germany)

Soundlumia Tube Sound Rating9.0/10 - Outstanding 

Date codes:
rX3 D8F (rX3 = EL84 production gen #3, D = Hamburg, Germany, 8 = 1958, F = June)
rX3 D8I (rX3 = EL84 production gen #3, D = Hamburg, Germany, 8 = 1958, I = September)

GM (Mutual Conductance) test result: 87%/84% of NOS/NEW

Silkscreen: 90% - 100%

Packaging: New white box

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): 9.87 mA/V - 87% (100% = 11.30 mA/V)
Measured plate current(IA): 39.37 mA  - 82% (100% = 48 mA)

Tube 2:

Measured transconductance(GM): 9.5 mA/V - 84% (100% = 11.30 mA/V)
Measured plate current(IA): 38.17 mA  - 80% (100% = 48 mA)

NO shorts, leakage or gas. NO noise or microphonics.

Curve trace is also included in the original RoeTest report.
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