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EM84

Information - Help 
ID = 413
       
Country:
Europe
Brand:
Tube type:  Mag. bar tuning indicator   Indication 
Identical to EM84 = 6FG6 = EM85E
Similar Tubes
Normally replaceable-slightly different:
  6Е3П
Other characteristic (electr. data):
  EM87
First year 1957 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Sep.1957 : Funkschau (FS) 1957, Heft 18
Predecessor Tubes EM80   EM81   EM85  
Successor Tubes 1961   EM87  

Base Noval, B9A
Filament Vf 6.3 Volts / If 0.21 Ampere / Indirect / Parallel, (AC/DC) /
Description With a 250V supply and 470k ohm load, requires typically 0 to -22V grid voltage for full range of indication from 0 to 21mm bar length. It has a variable gain characteristic which improves the sensitivity to weak signals. 
Text in other languages (may differ)
Tube prices 19 Tube prices (visible for members only)
Literature - - Manufacturers Literature   

  em84_1.png
  EM84: Michael Schlör
Arpad Roth
 
d_em84_1_2011.jpg
EM84
Jürgen Tiedmann

 
no75_g_6~~1.gif
EM84: RTT Schwandt
Günther Stabe

 
em84_data1.png
EM84: Telefunken 1964
Robert Schmalstieg


Usage in Models 19= 1957?? ; 28= 1957? ; 103= 1957 ; 40= 1958?? ; 39= 1958? ; 320= 1958 ; 20= 1959?? ; 111= 1959? ; 526= 1959 ; 74= 1960?? ; 84= 1960? ; 473= 1960 ; 15= 1961?? ; 81= 1961? ; 463= 1961 ; 18= 1962?? ; 63= 1962? ; 389= 1962 ; 31= 1963?? ; 63= 1963? ; 329= 1963 ; 13= 1964?? ; 45= 1964? ; 191= 1964 ; 51= 1965?? ; 56= 1965? ; 150= 1965 ; 11= 1966?? ; 25= 1966? ; 92= 1966 ; 11= 1967?? ; 35= 1967? ; 68= 1967 ; 8= 1968?? ; 13= 1968? ; 32= 1968 ; 2= 1969?? ; 4= 1969? ; 12= 1969 ; 12= 1970?? ; 12= 1970? ; 6= 1970 ; 2= 1971?? ; 2= 1971? ; 4= 1971 ; 1= 1972?? ; 6= 1972 ; 4= 1973 ; 1= 1974? ; 1= 1977?? ; 1= 1979?? ; 1= 1980?? ; 1= 1996 ; 2= 1999?? ; 1= 1999 ; 1= 9999?? ; 4= 9999? ; 21= 9999
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4191

Forum contributions about this tube
EM84
Threads: 1 | Posts: 1
Hits: 3396     Replies: 0
EM84 (EM84)
Vincent de Franco
05.May.07
  1 Avec une tension de 250V et une charge de 470k ohm, 0 à -22V de tension sur la grille permet de faire varier la taille de la barre d'affichage de 0 à 21mm. Une caractéristique de gain variable permet en plus d'améliorer la sensibilité pour les signaux plus faibles.
 
EM84
End of forum contributions about this tube

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