Antique radios, Old Time Radios

12AU7A

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Double Triode Universal

Tube ID = 5285


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Identical to	12AU7A = 7030
Similar Tubes	Normally replaceable-slightly different: 12AU7; 6680; ECC82 Heater different: 7AU7; 9AU7
First Source (s)	16.Jul.1954 : Electron Tube Registration List
Predecessor Tubes	12AH7GT

Base	Noval, B9A
Was used by	Radio/TV-reception etc.
Filament	Vf 12.6 Volts / If: 0.15 Ampere / -: Indirect / -: Parallel / series AC/DC /
Literature	Essential Characteristics, GE 1973

Private collection
Emilio Ciardiello

RTT 1974 (Franzis) 13. Auflage
Martin Renz

RCA Tube Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)	1= 1946? ; 1= 1954? ; 3= 1956?? ; 1= 1956? ; 100= 1959? ; 38= 1959 ; 5= 1960? ; 3= 1960 ; 1= 1961? ; 3= 1962? ; 2= 1963? ; 1= 1963 ; 10= 1964? ; 3= 1964 ; 2= 1965?? ; 1= 1967 ; 1= 1968?? ; 1= 1969 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 177

Further Information for

12AU7A

Simulation von Röhren mit Spice (25.03.2008) Georg Beckmann	Clicks: 409 Replies: 0
Ich hatte etwas Zeit, ein Modell einer Triode auf meinen Simulator zu adaptieren. Interessant an diesem Simulationsmodell ist die Möglichkeit, jede Triode anhand von 14 Parametern zu beschreiben. Wer kann mir helfen, für eine gegebene Röhre diese Parameter aus den Datenblättern zu ermitteln: * * THE TRIODE'S 14 PARAMETERS ARE: * * SFS shape factor of the saturation law. * VBIG contact potential of the grid * (the voltage above which grid may current start to flow). * VBIA contact potential of the anode. * MU amplification factor at slighly negative grid voltage. * RMU reduction factor for MU at very negative grid voltage. * VMU grid voltage for mid-range MU (negative). * SFMU shape factor for MU reduction law. * K perveance at slightly negative grid voltage. * RK perveance reduction factor at very negative grid voltage. * VK grid voltage for mid-range perveance (negative). * SFK shape factor for perveance reduction law. * SIGMAG effective cross-section of the grid relative to the anode. * ALPHAG grid current amplification factor. * SFG shape factor of the grid current law. Das wäre die Liste, noch 2 Bilder von ermittelten statischen Kennlinien In der Anlage das Modell als subcircuit. Die Endung muss bei meinem Simulator .ckt sein. Es ist ein reines Textfile

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