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1LH4

Information - Help 
ID = 3084
       
Country:
United States of America (USA)
Brand:
Tube type:  Diode-Triode   Audio Frequency 
Identical to 1LH4 = VT-177
Similar Tubes
Other class quality (otherwise equal):
  CV780
Other base and data slightly different:
  1H5GT
First Source (s)
16.May.1939 : Electron Tube Registration List

Base Loctal-8, B8G (Sylvania, 1938) (Codex=Ws)
Filament Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery =
Description

Glass lock-in type used as combinated detector and amplifier in battery-operated receivers. Filament 1.4 volts, 0.05 amperes. Typical operation as class A amplifier.

 
Tube prices 3 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  1lh4.png
  1LH4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
1lh4zenith1.jpg
1LH4: Collezione personale
Massimo Pedrina

 
496.png
1LH4: Telefunken Werkstattbuch
Wolfgang Bauer

 
1lh4_techdat01.png
1LH4: Sylvania Technical Manual
Peter Hoddow


from Just Qvigstad

Usage in Models 1= 1939? ; 4= 1939 ; 2= 1940?? ; 21= 1940? ; 10= 1940 ; 25= 1941 ; 1= 1942? ; 7= 1942 ; 1= 1943 ; 1= 1944? ; 1= 1945? ; 22= 1946 ; 3= 1947?? ; 6= 1947? ; 10= 1947 ; 5= 1948?? ; 1= 1948? ; 6= 1948 ; 1= 1949?? ; 1= 1949? ; 2= 1949 ; 3= 1950?? ; 1= 1951?? ; 3= 1952?? ; 1= 1952? ; 1= 1952

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):140


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