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Information - Help 
ID = 57310
Tube type:  Damper, booster, flyback diode 
Identical to 11R3 = LY81
Similar Tubes
Heater different:

Base Noval, B9A
Was used by Radio/TV-reception etc.
Filament If 0.45 Ampere / Indirect / Series, AC/DC
Information source -- Collector info (Sammler)   
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11R3: Collection Patrice ZEISSLOFF
Patrice Zeissloff

11R3: rtt
Michael Schlör


from Just Qvigstad

Usage in Models 1= 1965??

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

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