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OP2B

Information - Help 
ID = 78223
       
Country:
Worldwide
Brand: Common type Worldwide tube/semicond.
Tube type:  Transistor   Power/Output 
Identical to OP2B = AC176

Base Wires
Filament Solid State
Description

Aufbau/Material/Pol.: Germanium Legierung NPN;
Form/Case/Outline: TO-1;
Daten/electr.data: I F: __ mA; U S: __ V; Isp: __ µA; ß (beta): __; N: ___ mW; Imax: __ mA; Umax: __ V; f g: __ MHz; tmax j: __ °C; kompl.: OP2A.

This is NOT a specific transistor - it is a Replacement Classification System ID of BRC (British Radio Corporation Ltd.)
OP2B stands for one of the following transistors: AC176, ...
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Dimensions (WHD)
incl. pins / tip
6 x 10 x mm / 0.24 x 0.39 x inch
Weight 1 g / 0.04 oz
Information source -- Collector info (Sammler)   BRC Bulletin
 

Usage in Models 2= 1969? ; 1= 1971 ; 1= 1972?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4

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