File:Galena.svg
Summary
Inductively coupled crystal radio receiver circuit, a very simple radio that runs on the power it receives from the antenna. This type uses a resonant transformer, T-1, consisting of two magnetically coupled coils of wire, to select the station to be received. Each coil acts as a tuned circuit; the lefthand (primary) coil resonating with the antenna capacitance, the righthand (secondary) coil resonating with the tuning capacitor, CV which is variable and used to tune in different stations. Such a resonant transformer has a much sharper, narrower bandwidth than the single coil used in many circuits.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:32, 5 January 2017 | | 253 × 192 (5 KB) | 127.0.0.1 (talk) | Inductively coupled crystal radio receiver circuit, a very simple radio that runs on the power it receives from the antenna. This type uses a resonant transformer, T-1, consisting of two magnetically coupled coils of wire, to select the station to be received. Each coil acts as a tuned circuit; the lefthand (primary) coil resonating with the antenna capacitance, the righthand (secondary) coil resonating with the tuning capacitor, CV which is variable and used to tune in different stations. Such a resonant transformer has a much sharper, narrower bandwidth than the single coil used in many circuits. |
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