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ID = 53432
Brand: Halbleiterwerk Frankfurt /Oder, VEB, (HFO); Frankfurt /Oder (Ostd.)
Tube type:  IC - Integrated Circuit   Audio Frequency 
Identical to A273D
Similar Tubes
Normally replaceable-slightly different:

Base SPECIAL TUBEBASE in general
Filament Solid State

Aufbau/Content: IC (__ Trans., __ Widerst., _ Dioden);
Form/Case/Outline: DIP-16;
Type/Application: Lautstärke und Balance Stereo NFV;
Daten/ Vcc: 13.5 ... 16.5 V; Icc: 30 mA; Pd: __ mW; t op: -25...+70 °C;

Integrierter Schaltkreis zur gleichspannungsgesteuerten Lautstärke- und Balanceeinstellung für NF-Stereosysteme.

Dimensions (WHD)
incl. pins / tip
20 x 8 x 7 mm / 0.79 x 0.31 x 0.28 inch
Weight 1 g / 0.04 oz
Information source Radio und Fernsehen (DDR)   radio fernsehen elektronik 1980, H.4, S.238
- - Manufacturers Literature   
  A273D: RFE Heft12 1979
Thomas Günzel
A273D: eigene Sammlung
Jörg Kulbe

A273D: TTT Steidle 1981
Günther Stabe † 19.8.20

A273D: (Datenblatt (Auszug)
Günther Stabe † 19.8.20

Usage in Models 1= 1979 ; 1= 1984 ; 1= 1986?? ; 1= 1987?? ; 1= 1987

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

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