radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

428A

Information - Help 
ID = 34565
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Reflex Klystron 
Identical to 428A

Base Octal with RF-contact (long)
Filament Vf 6.3 Volts / If 0.4 Ampere / Specified voltage AC/DC
Description

Relex klystron similar to 723A/B as format and base, tunable from 6.4 to 7.2GHz. 330V. Intended for use in a 7GHz television relay system.

 
Information source Tube Lore (I)   
 
428a_enh.jpg
428A: Private collection
Emilio Ciardiello

 
8fh_19.png
428A
Emilio Ciardiello

 

from Just Qvigstad


You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg