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    Eds Radio

    dantedante
    in Edward Leedskalnin


    Currently it's the only photo of Ed and his radio
    I wish the photo had better detail

    Comments

    • Ones65118Ones65118
      The Star Weekly, Toronto, April 14, 1951

    • Magneticus_AttractusMagneticus_Attractus
      Good find @Ones65118
    • HeyjoeHeyjoe
      The radio bottles look kinda like his PMH with a wooden crossbar, just missing the bend. Maybe that thing was flipped around and floated in water. The bend is the neutral part of the magnet. Water is a neautralizer
    • HeyjoeHeyjoe
      Looking at it closer. I see it may have been used with the sun, shining through the glass and charging the coils. Looks like one bottle bottom is laminated with white cloth or paper and the other bottle is only partly covered and open bottom. Than it looks like the 2coil overlapping the left side is coiled up on the upper right bottle, and the 1st coil is full on the left side and partly on the right side.

      You know that the refractive index of light through plastic or glass is 1.5 which is 42degree and slows down by 1/3

      Snells law: n₁sin𝓲 = n₂sinr ⟹ sin𝓲 = 1/1.5 = 0.66′ ⟹ 𝓲 ≈ 41.81


      “One and one-half “ -ed
    • LEEDSKALNINLEEDSKALNIN
      edited February 2024
      The early earphones used with wireless-era crystal sets had moving iron drivers that worked in a way similar to the horn loudspeakers of the period. Each earpiece contained a permanent magnet about which was a coil of wire which formed a second electromagnet. Both magnetic poles were close to a steel diaphragm of the speaker. When the audio signal from the radio was passed through the electromagnet's windings, current was caused to flow in the coil which created a varying magnetic field that augmented or diminished that due to the permanent magnet. This varied the force of attraction on the diaphragm, causing it to vibrate. The vibrations of the diaphragm push and pull on the air in front of it, creating sound waves. Standard headphones used in telephone work had a low impedance, often 75 Ω, and required more current than a crystal radio could supply. Therefore, the type used with crystal set radios (and other sensitive equipment) was wound with more turns of finer wire giving it a high impedance of 2000–8000 Ω...

      i have to point out there are headphones left in eds belongings. where are eds headphones in this photo demonstration?

      in magnetic current ed says to put the coil and core in an iron tube, is most efficient. it doesnt waste any magnets that come from the battery or dynamo.

      ed says all currents are alternating.

      instead of using crystal radio to move a diaphragm in headset to make sound. the crystal radio maybe have been used to store energy in all that mass or iron tied around everything. the coils magnetic field, instead of moving a coil. if the coil is stationary where it cannot move, then the magnet will move instead. ed also uses soft iron wire, and mentions smaller soft iron wire with more turns, make stronger magnets, he said he can do the same with copper wire coil but smaller scale.

      ed does not talk about glass bottles, but he does talk about glass twice in magnetic current.
    • HeyjoeHeyjoe
      LEEDSKALNIN said:

      instead of moving a coil. if the coil is stationary where it cannot move, then the magnet will move instead.

      Along his wall he has a hanging coiled glass bottle where the coil is attached stationary to a nail into the stone. The rest of the coiled wire is dropped to the ground. He has gaps between every wall block to place one of these hanging coils. If one side of the coil is N the other side is S you could have a coordinated center point within his castle walls by controlling the 2 ends.
    • Magnetic_UniverseMagnetic_Universe
      @dante @Ones65118 Good stuff guys, yet again!
    • Ones65118Ones65118
      @Magnetic_Universe Thank You! Here's hope to this year bringing about many more discoveries and clues :)
    • DrWhoDrWho
      i dont think this was a radio.

      we know Ed used a crystal radio. Ed wouldn't have bought a newfangled germanium diode which was a new idea, rare, and expensive in the 1940's. Ed would have used a crystal detector with a cat's whisker wire. there isn't one in the pic nor are their headphones. there's 2 coils and a tuning cap. i think this setup may have been something he was experimenting with.

      in the old gift shop there was a crystal radio made up of a 1920's radio coil from a junked set, a tuning cap from a WW2 radio, a crystal detector with cat's whisker, and a set of 1920's headphones. it was all crudely attached to a dingy piece of plywood. those items got put away when gift shop got trashed by a hurricane.

      in Ed's room, along the wooden beams, is a zigzag of heavy gauge copper wire that starts at corner shelf where his pantry hangs, goes up, zigzags on every beam, and would exit to roof. on roof, center turret block on east side has a hole cut into it on inside where a wire could be fastened. old timers claim to remember seeing wires strung from tower to moon and obelisk.

      on the electronics display board that hung in Ed's shop (something done by Levin maybe) there were other older tuning caps. Ed clearly was messing with radios and even tells you in some interviews that got published.
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