Antique radios, Old Time Radios
BF521
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Country:
Poland
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| Identical to |
BF521
|
| Similar
Tubes |
Other shape (e.g. bulb type):
BF621
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| Base |
Wires
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| Description |
NPN silicon planar high-frequency transistor
Text in other
languages (may
differ)
|
Dimensions (WHD)
incl. pins / tip |
6 x 6 x 6 mm / 0.24 x 0.24 x 0.24 inch |
| Weight |
1 g / 0.04 oz |
| Information source |
- - Manufacturers Literature Unitra Cemi
|
BF521: Ausschnitt aus Schltg MLR-3
Karl-Heinz Entrich † 7.21
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BF521: TVT 73
Günther Stabe † 19.8.20
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
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