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ID = 34925
Brand: Common type Worldwide tube/semicond.
Tube type:  IC - Integrated Circuit   Audio Frequency 
Identical to µA739 = TBA231
Similar Tubes
Normally replaceable-slightly different:
  SN76131 ; µA749
First Source (s)
Oct.1970 : -- Collector info (Sammler)
Predecessor Tubes µA749  
Successor Tubes RC4739  

Base SPECIAL TUBEBASE in general
Filament Solid State
Description Aufbau/Content: IC (14 Trans., 15 Widerst., 6 Dioden);
Form/Case: TO-116(DIL14) | TO-99;
Type: Dual OpAmp (2-fach-Operationsverstärker)
Data: Ub: +/-12 V; Ub max: +/-18 V; Leistungsaufnahme: 650 mW; fg (FT): 10 MHz; Ib: 9 mA; Leerlaufverstärkung: 15'000.
Variante: µA749 (same data), µA749D = Vs: +/- 12 V.
Nachfolger/successor: TL062/82, ähnlich/similar: LM387, NE542, LM258/358, MC1458/1558, SN76131(N)
Dimensions (WHD)
incl. pins / tip
19 x 8 x 7 mm / 0.75 x 0.31 x 0.28 inch
Weight 1 g / 0.04 oz
  µA739: Elektor IC-Beispiele
Günther Stabe
µA739: G.S.
Günther Stabe

µA739: Elektor 1977
Günther Stabe

µA739: Fairchild datasheet
Günther Stabe

Usage in Models 1= 1972 ; 2= 1973 ; 1= 1975 ; 1= 1981

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):5

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