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ID = 40157
Brand: Intermetall Halbleiterwerk, Düsseldorf
Tube type:  Solid-State-Diode   Universal 
Identical to BAY21
Similar Tubes
Normally replaceable-slightly different:
  BA145 ; BAY46 ; OA132 ; OA202
Other base and data slightly different:

Base Wires
Filament Solid State
Description Material/Aufbau: Silizium diff. Diode;
Form/Case: DO-7;
Daten/ I F: 800 mA; U F: 1 V; I sp: 0.03 µA; U sp: 300 V; N: 400 mW; I max: 100 mA; U max: 350 V; f g: __ MHz; tmax j: 150 °C; 1.2 pF;
Manufactured by Cosem (F) and Intermetall (D); Austauschtyp: BAY89 - 
Dimensions (WHD)
incl. pins / tip
7 x 3 x mm / 0.28 x 0.12 x inch
Weight 1 g / 0.04 oz
Information source
  BAY21: Funkschau 2/73 S.61
Egon Strampe
BAY21: ma propre collection
Jacky Parmentier

BAY21: DVT 1971 ECA
Günther Stabe

BAY21: ITT_Dioden_1971_72
Thomas Günzel

Usage in Models 1= 1969 ; 2= 1971

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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