Antique radios, Old Time Radios
4N28
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Country:
United States of America (USA)
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| Identical to |
4N28
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| Similar
Tubes |
Normally replaceable-slightly different:
4N25
|
| Base |
SPECIAL TUBEBASE in general
|
| Description |
General purpose Opto-Coupler: GaAS-IR-emitting diode + phototransistor.
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Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
8 x 7 x 8 mm / 0.31 x 0.28 x 0.31 inch |
| Weight |
1 g / 0.04 oz |
| Information source |
- - Manufacturers Literature Fairchild/Infineon
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4N28: Fairchild
Günther Stabe † 19.8.20
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4N28: Siemens Optokoppler
Egon Strampe
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Collection of
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