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ID = 74090
Brand: Sanyo Electric Co. Ltd.; Moriguchi (Osaka)
Tube type:  IC - Integrated Circuit   Power/Output 
Identical to LA4557

Base Wires
Filament Solid State

Aufbau/Content: IC (__ Trans., __ Widerst., __ Dioden, __ Kond.);
Form/Case/Outline: DIP-12F;
Applikation/Type: Dual AF power amplifier for radio/tape recorder; 2 x 1.7 W @ 4 Ω (Vcc: 9V)...8 Ω / BTL: 4.5 W @ 8 Ω;
Daten/ Vcc: 7.5 ... 9 V; Icc: 20 mA; Pd: <4 W; t op: -20...+75 °C.

Dimensions (WHD)
incl. pins / tip
20 x 7 x 8 mm / 0.79 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
Information source - - Manufacturers Literature   
  LA4557: Sanyo
Günther Stabe † 19.8.20
LA4557: M.M.
Michael Mischke

LA4557: Sanyo
Günther Stabe † 19.8.20

LA4557: Sanyo
Günther Stabe † 19.8.20

Usage in Models 1= 1992??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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