Antique radios, Old Time Radios

UF41

ID = 343

Country:

Europe

Brand:	Common type Europe tube/semicond.
Developer:	Philips; Eindhoven (tubes international!); Miniwatt
Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Identical to

UF41 = 12AC5 = HF121 = 121VP = MUF41 = W142

First year

1947 Tube leaflet collection E.Erb Analysis by original leaflets

First Source (s)

Oct.1947 : Funkschau Heft 10; 1947

Jul.1946 : Daten und Schaltungen moderner ... Röhren; Philips # 3a

Predecessor Tubes

UF21 UF9 UF5

Successor Tubes

1954 UF89

Base	Rimlock base B8A (Codex=Wh)
Filament	Vf 12.6 Volts / If 0.1 Ampere / Indirect / Series, ~ = (AC/DC defined current)
Tube prices	2 Tube prices (visible for members only)

UF41: TreLe
Trev Levick

UF41: rtt
Michael Schlör

UF41: Röhren Dokumente Franzis Verlag
Albrecht Schwaderer

from Just Qvigstad

Usage in Models

3= 1947?? ; 1= 1947? ; 12= 1947 ; 2= 1948?? ; 2= 1948? ; 6= 1948 ; 11= 1949?? ; 8= 1949? ; 38= 1949 ; 60= 1950?? ; 28= 1950? ; 70= 1950 ; 12= 1951?? ; 33= 1951? ; 117= 1951 ; 32= 1952?? ; 45= 1952? ; 116= 1952 ; 24= 1953?? ; 38= 1953? ; 101= 1953 ; 23= 1954?? ; 16= 1954? ; 100= 1954 ; 55= 1955?? ; 27= 1955? ; 92= 1955 ; 16= 1956?? ; 12= 1956? ; 38= 1956 ; 8= 1957?? ; 11= 1957? ; 28= 1957 ; 6= 1958?? ; 5= 1958? ; 14= 1958 ; 1= 1959?? ; 1= 1959? ; 2= 1959 ; 5= 1960?? ; 3= 1960 ; 2= 1961?? ; 1= 1961 ; 1= 1962?? ; 2= 1963? ; 1= 1965?? ; 4= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1233

Literature "Radio / Radio ja Sähkö" Vol. 5 No. 8 | 1946-08

Forum contributions about this tube

UF41

Threads: 1 | Posts: 3

Hits: 3495 Replies: 2 UF41
Júlio Branco 26.Jul.05	1 UF41 Dear friends of the radio This valve can be substituted by the valve 12AC5, according to outline that I enclose: Best regardes Júlio Branco from Portugal
Ernst Erb 31.Jul.05	2 Thank you Urs Gloor has put your information to the tube, thank you for telling us, Júlio. It would be nice of you if you could upload this very nice tube-schematic to both of the tubes. You just use "Add information to tube" then select "Env. schematic". The 12AC5 is also missing a picture and pin allocation picture etc. But the pins are already clear with your picture ... ;-)
Júlio Branco 09.Aug.05	3 12AC5 Dear Ernst Following with your suggestion, I already made the upload of the schematic for the tube 12AC5. Best Regardes Júlio Branco, from Portugal

UF41
End of forum contributions about this tube

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