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ID = 35257
Brand: Common type Worldwide tube/semicond.
Tube type:  IC - Integrated Circuit   Audio Frequency 
Identical to µA749
Similar Tubes
Normally replaceable-slightly different:
  RC4739 ; TBA231 ; µA739
First Source (s)
Oct.1970 : -- Collector info (Sammler)
Successor Tubes µA739  

Base Wires
Description Aufbau/Content: IC (14 Trans., 13 Widerst., 6 Dioden);
Form/Case: TO-99 / TO-116(DIL14);
Type: Dual OpAmp (2-fach-Operationsverstärker)
Data: Ub: +/-12 V(TO-99); Ub max: +/-18 V (TO-116 only!); Leistungsaufnahme: 500 mW; fg (FT): 10 MHz; Ib: 9 mA; Leerlaufverstärkung: 25'000.
Open collector PNP out (in µA739 grounded with 5 kOhm).
Lag out A/B not available in TO-99 metal case! µA749D = Vs: +/- 12 V.
Nachfolger/successor: TL062/82; baugleich: MBA245 (Tesla), ähnlich: LM387, NE542, LM258/358, MC1458/1558
Dimensions (WHD)
incl. pins / tip
10 x 8 x mm / 0.39 x 0.31 x inch
Weight 1 g / 0.04 oz

µA749: Fairchild datasheet
Günther Stabe † 19.8.20

a749_s.gif µA749: Fairchild datasheet
Günther Stabe † 19.8.20

µA749: Fairchild datasheet
Günther Stabe † 19.8.20


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