Morse Code Keys: straight or pump handle

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  • Опубликовано: 16 ноя 2024

Комментарии • 5

  • @tpobrienjr
    @tpobrienjr 10 месяцев назад

    Thanks for a good, complete description. I still own my first straight key - a surplus J-38 that I paid 75 cents for in 1957.

  • @azarellediaz4892
    @azarellediaz4892 11 месяцев назад +1

    I see many of these old military type keys on eBay and other videos but nobody says what is the other lever for? Can you explain it? Thanks. 5:01

    • @ElectronicsNotes
      @ElectronicsNotes  11 месяцев назад

      The slide lever associated with the steel lever keys was primarily required in the old days of the telegraph. The contact had to be close when not sending so that the other end could use the line and send messages back. If it was left open, then no current could flow and the other end could not send.
      For use with radio transmitters the slider was closed when tuning up, but it is not really a requirement these days on most modern transmitters that have a tune button.

  • @azarellediaz4892
    @azarellediaz4892 11 месяцев назад +1

    Sadly, at the end of your video you say there is more information on the description but because of the hashtags the [more] link can’t be activated, one either activates the hashtag or access your profile.

    • @ElectronicsNotes
      @ElectronicsNotes  11 месяцев назад

      I've tried replicating your problem, but I can access the profile and description on both mobile and desktop. I'll investigate more. Thanks for flagging it.