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ID = 21558
Tube type:  Vacuum Pentode   Power/Output 
Identical to XL86 = 8CW5
Similar Tubes
Heater different:
  10CW5 ; 15CW5 ; 6CW5 ; EL86 ; LL86 ; PL84

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 8 Volts / If 0.6 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Information source

no20_g_6.gif XL86: RTT Schwandt
Günther Stabe † 19.8.20

More ...

Just Qvigstad
XL86: RCA Tube Manual
Peter Hoddow

Collection of



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