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ID = 34385
Tube type:  Oscilloscope CRT, picture tube   Indication 
Identical to 3WP11
Similar Tubes
Normally replaceable-slightly different:
  3WP1 ; 3WP2
First Source (s)
31.Oct.1952 : Electron Tube Registration List

Base Duodecal (12-pin), B12A (not glass)
Was used by Technology / Measurement
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect

Blue high-speed P11 screen.

Information source - - Manufacturers Literature   

3wp11_so.png 3WP11: rtt
Anonymous 10 Collector

Just Qvigstad

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