| 6U8A/6AX8/6KD8/5KD8 | | part details | | MIX | | | Avail | | 467 |
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| 6U8100VB11E | | part details | | PHILIPS SEMI | | | Avail | | 129 |
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| 6U8 | | part details | | MAZDA | | | Avail | | 109 |
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| 6U8/35V | | part details | | | 9941 | | Avail | | 100 |
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| 6U8A/6AX8/5KD8/6KD8 | | part details | | MIX | | | Avail | | 95 |
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| 6U8H | | part details | | ASK | | 0 | | Avail | | 70 |
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| 6u8KJ8MMK100 | | part details | | EVOX RIFA 98+ | | | Avail | | 50 |
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| 6U8A/6AX8/5KD8/6KD8 | | part details | | GE | | N/A | | Avail | | 20 |
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| 6U8A/6AX8/5KD8/6KD8 | | part details | | General Electronic Device | | -- | | Avail | | 12 |
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| 6U8A | | part details | | RCA SOLID STATE | | | Avail | | 10 |
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| 6U8A/6KD8 | | part details | | RCA SOLID STATE | | | Avail | | 10 |
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