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ID = 31134
Brand: Unknown - CUSTOM BUILT: France (INCONNU)
Tube type:  Triode, vacuum   Audio Frequency 
  Late but very rare. ***
Identical to 6F5_Y8A
Similar Tubes
Other base:
  6F5G ; 6F5G_single-ended

Base German Steel Y8A, 1938
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC

A 6F5, which is normally an Octal tube, here with a German Y8A Steel-tube base, as replacement for the triode unit of the ECL11 in France.
For the output unit of the ECL11 an additional output penthode 6M6G was required to built in.

To fit into the Telefunken steel tube base Y8A, an extra thick bulb had to be chosen for the 6F5_Y8A.

Text in other languages (may differ)

6f5_y8a_base.png 6F5_Y8A: Collection JR
Jacob Roschy

Just Qvigstad
Usage in Models 1= 1940?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of



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