old transistors various purpose different packages gray surface |
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| navigate by keyword : transistor bipolar junction field effect power switching amplifier optical microwave discrete highpower component electronic active device semiconductor package metal ceramic plastic amplify switch pan heat sink electronics industrial consumer equipment technology industry old used gray background transistors purpose packages surface fragment close selective focus |
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| Old bipolar and field-effect transistors various purpose in different metal, ceramic and plastic packages on a gray surface, fragment close-up in selective focus |
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