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Telefunken

Telefunken EF86 Silver Plates ◇ Base Berlin '58 (tE2 ⟂8I) - Philips Label - NOS

Telefunken EF86 Silver Plates ◇ Base Berlin '58 (tE2 ⟂8I) - Philips Label - NOS

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Product Summary

Model: 1958 Telefunken EF86 (Made in Germany)

Soundlumia Tube Sound Rating9.5/10 - Outstanding 

1950s Berlin, Germany production - Unparalleled sound characteristics and superb build quality - True holographic sound stage with layered details and ultra clarity

Date code: tE2 8I (tE2 = EF86 Generation #2,  = Telefunken Berlin, 8 = 1958, I = September)
 
GM (Mutual Conductance) test result102% NOS

Silkscreen: 100%

PackagingNEW 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): 2.05 mA/V - 102% (100% = 2.00 mA/V)
Measured plate current(IA): 3.017 mA  - 101% (100% = 3 mA)

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

Curve trace is also included in the original RoeTest report.
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