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"content": "I ran the experiments now for the \"double tube\" case. I measured all these inductance values at the three windings around core \"A\".\n\nCore with 3 turns (blue): 5uH\n\nAdd a second core (\"B\") next to it, thread a red wire through them but leave it open: 5uH\n\nJoin the red wire ends: 2.7uH\n\nShort the three wires around core \"B\": 1uH\n\nI don't have any spare binocular cores unfortunately. I've already soldered the ones from the kit in place!\nhttps://media.tilde.zone/media_attachments/files/113/755/260/070/636/432/original/1120f01dcabd032f.jpg\nhttps://media.tilde.zone/media_attachments/files/113/755/260/510/434/284/original/dec1376b27ec78a3.jpg\nhttps://media.tilde.zone/media_attachments/files/113/755/260/935/896/147/original/6ba4f4e9a5d3d6fe.jpg\nhttps://media.tilde.zone/media_attachments/files/113/755/261/377/335/466/original/bfb2447811c51cf4.jpg\n",
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