I'm going to introduce the wireless telegraph in 1st century AD. How would you do that, you might ask? Well, it's simple: use iron spring metal with rivet for the telegraph key with bronze collector comb, with two vertical rolling pins with hemp linen rubbed together with honey absorbed shards of glass. That'll be used to generate electrostatic charge with flywheel mechanism. The collector combs are wired to a leyden jar capacitor consisting of a Roman glassblown leyden jar with bronze screw-on lid with knob ontop to serve as antenna, bronze chain attached to nipple touching bronze foil on the bottom of the jar, with the wire coiled around the bronze foil on the outside of the jar, touching the lid. That'll be the spark gap transmitter.
You could make a receiver. But you'd need homemade headphones consisting of wood for the case, leather for the earmuffs and lodestone instead of magnets for picking up the audio signal. Wire it to your wooden board with two bronze nipples on the sides to coil wire around using pitch or beeswax as insulator. Use a Galena crystal attached to the top with a bronze cat's whisker and bronze screws in the board. Then get a wooden stick shaved and coil 100 meters of copper wire from an elite workshop around it, run the wire to an bronze post on the same board as the galena crystal receiver, coiling it around.
You could make a receiver. But you'd need homemade headphones consisting of wood for the case, leather for the earmuffs and lodestone instead of magnets for picking up the audio signal. Wire it to your wooden board with two bronze nipples on the sides to coil wire around using pitch or beeswax as insulator. Use a Galena crystal attached to the top with a bronze cat's whisker and bronze screws in the board. Then get a wooden stick shaved and coil 100 meters of copper wire from an elite workshop around it, run the wire to an bronze post on the same board as the galena crystal receiver, coiling it around.
