Timeline for Resonant RF transformer using a piece of wire (no capacitors)
Current License: CC BY-SA 4.0
5 events
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Feb 10, 2022 at 19:42 | history | edited | rclocher3 | CC BY-SA 4.0 |
copied @hobbs-KC2G's explanation about the "I" component in the spark-gap transmitter schematics
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Feb 10, 2022 at 18:26 | comment | added | elgroovy | Thanks for your input. "I" on the diagrams seems be to an interrupter tied to T which is an Induction (Ruhmkorff) coil that was quite popular back in the spark-gap radio era. Since pre-1897 spark-gap transmitter is basically a HV source directly connected to the antenna, It happens to be only a transmitting part and the receiving end (like in Hertz's apparatus from 1887) is missing. | |
Feb 10, 2022 at 18:23 | comment | added | hobbs - KC2G | I is an "interrupter", it's a mechanical device that turns the DC from the battery into AC that the transformer can use. Similar in spirit to the circuit that rings an old-style alarm bell — a spring-loaded contact closes the circuit, which energizes a coil, which magnetically pulls the contact back open, so it oscillates (or something like that, there were many variations on interrupters over the years). | |
Feb 10, 2022 at 18:08 | vote | accept | elgroovy | ||
Feb 10, 2022 at 17:04 | history | answered | rclocher3 | CC BY-SA 4.0 |