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Telefunken

Telefunken EL84 6BQ5 Matched Pair - ◇ Bottom - Berlin 1963_64 - Near NOS

Telefunken EL84 6BQ5 Matched Pair - ◇ Bottom - Berlin 1963_64 - Near NOS

$191.00 USD
$191.00 USD
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Product Summary

Model: 1963-64 Telefunken EL84 6BQ5 (Made in Germany)

Soundlumia Tube Sound Rating: 9.5/10 - Outstanding 

Early 1960s Berlin, Germany production - Unparalleled sound characteristics and superb build quality - True holographic sound stage with layered details and ultra clarity

Date codes: 

B028332x (B = Berlin, 3 = 1963)
B3014208 (B = Berlin, 4 = 1964)

GM (Mutual Conductance) test result: 94%/97% of NOS/NEW

Silkscreen: 90% - 95%

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): 10.63 mA/V - 94% (100% = 11.3 mA/V)
Measured plate current(IA): 45.37 mA - 95% (100% = 48 mA)

Tube 2: 

Measured transconductance(GM): 11 mA/V - 97% (100% = 11.3 mA/V)
Measured plate current(IA): 50.54 mA - 105% (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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