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10mm RF/IF transformers, Spectrum type 105uL, for 455kHz - 3.65MHz, pack of 5

£5

The 105uL coil has minimum inductance of 66uH and maximum 140uH, it has 42t 1-2, 14t 2-3, so has 56t 1-3, and 3t secondary. The Q is 85 at 1MHz. For those not adept at calculating resonating capacitance, this coil will resonate with 18pF on 3.65MHz, with 68pF on 1.85MHz, with 270pF at 1MHz, and 1200pF on 455kHz.

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