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3SP1

Information - Help 
ID = 32163
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Oscilloscope CRT, picture tube 
Identical to 3SP1

Base Duodecal (12-pin), B12A
Filament
Description 1.5 x 3" rectangular screen. 2750V accelerating potential; 61V/inch vertical deflection.
Introduced by Waterman in 1955. 
Information source -- Collector info (Sammler)   
-- Original prospect or advert   
 
3sp1_so.png
3SP1: ARRL Handbook 1972
Michael Schlör

 

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