Antique radios, Old Time Radios

1S5T

Country:	Hungary		Brand:	Tungsram; Budapest (see also British T.)
			Tube type:	Diode-Pentode Audio Frequency

Tube ID = 2814

previous | next

Identical to	1S5T
Similar Tubes	Heater different: 1S5 Other base: 1U5
First Source (s)	Apr.1949 : Funkschau (FS) 1949, Heft 9 Sep.1948 : Funk-Technik (FT) 1948 #18

Base	Miniatur-7-Pin-Base B7G, USA 1940
Filament	Vf 1.4 Volts / If: 0.025 Ampere / -: Direct / -: Battery = /
Description	Miniature type used in light-weight, compact, portable, battery-operated receivers as combined detector and voltage amplifier. Filament 1.4 volts, 0.05 amperes. Same tube as 1S5 but built by Tungsram (T). The 1U5 has the same electrical characteristics but it uses an improved structure which greatly reduces any tendency toward microphonic effects. In addition, the diode unit is effectively shielded from the pentode unit to prevent "play-through".
Tube prices	0 Tube prices (visible for members only)

1S5T: Tungsram
Georges Werts

1S5T: Telefunken Röhrenhandbuch
Wolfgang Bauer

Usage in Models	2= 1948 ; 1= 1949 ; 1= 1950?? ; 2= 1950? ; 8= 1950 ; 3= 1951 ; 1= 1952?? ; 1= 1952? ; 6= 1952 ; 1= 1953? ; 6= 1953 ; 2= 1954? ; 2= 1954 ; 1= 1955?? ; 2= 1955? ; 5= 1955 ; 2= 1956? ; 20= 1956 ; 6= 1957 ; 3= 1958? ; 7= 1958 ; 1= 1959?? ; 7= 1959 ; 2= 1961
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 92

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]