Antique radios, Old Time Radios

1U5

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Diode-Pentode Audio Frequency

Tube ID = 2816


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Identical to	1U5
Similar Tubes	Other base: 1S5; 1S5T
First Source (s)	Oct.1945 : Electron Tube Registration List

Base	Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Zx)
Was used by	Radio/TV-reception etc.
Filament	Vf 1.4 Volts / If: 0.05 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. The 1S5 has the same electrical characteristics but the 1U5 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". They are not interchangeable since pin allocation is completely different.
Tube prices	1 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Karel De Reus

Röhrensammlung
Wolfgang Bauer

Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)

1= 1945? ; 2= 1946 ; 1= 1947? ; 9= 1947 ; 3= 1948?? ; 35= 1948 ; 1= 1949?? ; 4= 1949? ; 59= 1949 ; 5= 1950?? ; 17= 1950? ; 74= 1950 ; 14= 1951?? ; 8= 1951? ; 29= 1951 ; 8= 1952?? ; 18= 1952? ; 57= 1952 ; 4= 1953?? ; 46= 1953? ; 66= 1953 ; 6= 1954?? ; 83= 1954? ; 48= 1954 ; 19= 1955?? ; 82= 1955? ; 20= 1955 ; 1= 1956?? ; 65= 1956? ; 41= 1956 ; 2= 1957?? ; 37= 1957? ; 9= 1957 ; 2= 1958?? ; 2= 1958? ; 8= 1958 ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 935

Further Information for

1U5

1U5 (1U5) (13.03.2008) Hans Georg Fuerst	Clicks: 465 Replies: 1
Guten Tag , Ich hätte eine kleine Bemerkung zur Batterieröhre 1U5 zu machen : Die amerik.Batterie-Röhre 1U5 entspricht der europ.Type DAF92 und wird hier in der Abbildung mit der richtigen Sockelschaltung (Belegung) dargestellt. Die Röhre wäre auch austauschbar mit den ählichen Typen 1S5 (DAF91) wie in der Beschreibung erwähnt wird ,aber nur indirekt ,denn die Sockelbelegung der 1S5 ist eine Andere ! Die zur Hilfe ,damit eventuelle Missverständnisse bei Röhrentausch ausgeräumt sind .DieSockelbelegung derDAF 91 / 1S5 findet man unter der Beschreibung dieses Types. More ...

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