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ID = 55497
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  CRT (cathode ray tube, picture tube)   Indication 
Identical to 3DP1A
Predecessor Tubes 3DP1  

Base Diheptal (14 pin glass U14)
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect
Description 3" CRT with central deflection electrode for J-type indicators. Pip deflection pin in the middle of the screen. Depending upon the factory printing of a custom scale, a two-character suffix is added. S2 suffix stays for a 0 to 5 circular scale decal.
Similar to 3DP1, with zero anode 1 current. 
Information source Tube Lore (I)   

3dp1.png 3DP1A
Emilio Ciardiello

Just Qvigstad

Collection of



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