Antique radios, Old Time Radios
2N4921
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Country:
United States of America (USA)
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| Identical to |
2N4921
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| Similar
Tubes |
Normally replaceable-slightly different:
BD233
; BD437
|
| Base |
Wires
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| Description |
NPN silicon planar transistor intended as AF power amplifier.
-
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
8 x 11 x 3 mm / 0.31 x 0.43 x 0.12 inch |
| Weight |
2 g / 0.07 oz |
| Information source |
- - -
- - - TTT Steidle 1981, TVT 1978 ECA
- - -
- - -
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2N4921
Günther Stabe † 19.8.20
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2N4921: National Semiconductor 1978
Heinz Höger
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):4
Collection of
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