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Telefunken
1x Telefunken EL34 6CA7 - Wing Plates - Double O Getter - Ulm 1961 - Tests NOS
1x Telefunken EL34 6CA7 - Wing Plates - Double O Getter - Ulm 1961 - Tests NOS
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Product Summary
Model: 1961 Telefunken EL34 (Made in Germany)
Soundlumia Tube Sound Rating: 9.5/10 - Exceptional
Early 1960s Ulm, Germany production - Unparalleled sound characteristics and superb build quality - True holographic sound stage with layered details and ultra clarity
Date codes: U 720193? (U=Ulm, 1 = 1961)
GM (Mutual Conductance) test result: 101% of NOS/NEW
Silkscreen: 90% - 100%
Packaging: NEW reproduction Telefunken 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): 11.13 mA/V - 101% (100% = 11.00 mA/V)
Measured plate current(IA): 97.79 mA - 98% (100% = 100 mA)
NO shorts, leakage or gas. NO noise or microphonics.
Curve trace is also included in the original RoeTest report.
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