Antique radios, Old Time Radios
BD644
|
Country:
Europe
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| Identical to |
BD644
|
| Similar
Tubes |
Normally replaceable-slightly different:
BD696
; BDW24
; BDX34
|
| Base |
Wires
|
| Description |
Material/Aufbau/Pol.: Silizium Planar PNP Leistungs-Darlington;
Form/Case: TO-220, Anschlussfolge B1-C1/C2-E2;
Daten/electr.data: I F: 4 A; U S: <2.0 V; Isp: <200 µA; ß (beta): >750; N: 62.5 W; Imax(Ic): 12 A; Umax(Uce): -45 V; f g(FT): 7 MHz; tmax: __ °C; kompl.: BD643.
Vergleichstyp: BD896.
Manufactured by Telefunken and Siemens. -
|
Dimensions (WHD)
incl. pins / tip |
12 x 15 x 5 mm / 0.47 x 0.59 x 0.20 inch |
| Weight |
5 g / 0.18 oz |
| Information source |
- - -
- - - TTT Steidle 1981
- - -
- - -
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|
BD644: TTT Steidle 1981
Günther Stabe † 19.8.20
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BD644: Valvo Transistoren, 1974
Anonymous 10 Collector
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