How to Prototype EF Johnson VFO Ham Radio Tube Transmitter Frequency control

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  • Опубліковано 7 жов 2024

КОМЕНТАРІ • 27

  • @rciancia
    @rciancia 3 роки тому +5

    Terry, what I love is when you take a technology from 60 years ago, reverse engineer it and then modernize it to something that would make sense in our modern world. This is the sign of a person who deeply understands how this stuff works. Hats off to you Terrry.... I bet the original engineers from Johnson and Viking would embrace you ( this and PTT) if they were still alive !!!!! Bravo !!

  • @mackfisher4487
    @mackfisher4487 3 роки тому +3

    Thanks for bringing to life the old ads for equipment from CQ and QST of the 50s.

  • @wesleymatthews137
    @wesleymatthews137 3 роки тому +3

    Oh man. How fun is this hobby?!? Wow!

  • @hestheMaster
    @hestheMaster 3 роки тому +2

    Very cool VFO that anyone could build with requested schematics. Awesome Terry.🍷🍷

  • @OIE82
    @OIE82 8 місяців тому +1

    Cool stuff Terry. I was going to ask "What the heck is a VFO?" but you covered that.
    But what the heck is "spot"?
    Ya'll are going to mess around and get me involved with HAM!
    Like I need another diversion.😵‍💫

  • @jimgiordano8218
    @jimgiordano8218 3 роки тому +2

    Very cool home brew VFO. Thanks for sharing 👍 😊

  • @TheGalaxyhopper
    @TheGalaxyhopper 3 роки тому +2

    I see you are finally done, looks good! cool. I want one!

  • @HAUNTED-HAM
    @HAUNTED-HAM 3 роки тому +1

    Very cool! I just got my Viking II and 122 VFO working properly because of your videos. Yes I also installed your K1 Meyer and LOVE it! Thanks for sharing all your knowledge with us fellow HAMS.
    73’s. KB2LMN

  • @PapasDino
    @PapasDino 3 роки тому +2

    Nice project Terry, look forward to seeing the final version! 73 - Dino KLØS

  • @vtradio
    @vtradio 3 роки тому

    Great job with the stand alone VFO, Terry!
    73
    Paul AA1SU

  • @Philip-KA4KOE
    @Philip-KA4KOE 3 роки тому +1

    Another great video. Thanks! Philip

  • @bobrowlette4143
    @bobrowlette4143 3 роки тому +1

    Thanks, Terry. Very nice, and thanks for sharing.

  • @Barracuda48082
    @Barracuda48082 3 роки тому

    A slider ?
    Awesome home brew. Thanks for these educational projects .
    73, kb8qlz

  • @brianholmes3451
    @brianholmes3451 3 роки тому

    Nice project!

  • @billyrey9679
    @billyrey9679 3 роки тому +1

    Sweet Ruler!! TRW run with cinnamon rolls!!

    • @d-labelectronics
      @d-labelectronics  3 роки тому +2

      You would see that Vandy Land ruler! Good times at TRW, Bet their still looking for us!

    • @billyrey9679
      @billyrey9679 3 роки тому

      @@d-labelectronics I may have bought one of those dogs on E-Pay...!

  • @extreme978
    @extreme978 3 роки тому +1

    Watching that hotdog at the beginning, I'm thinking you've been drinking too much wine.

  • @kornami8678
    @kornami8678 3 роки тому +1

    Cool! You may want to add pin numbering to the 0A2 regulator tube.

  • @cheycasters
    @cheycasters 3 роки тому +1

    nice!

  • @davidstinson7269
    @davidstinson7269 3 роки тому +3

    What are you doing up so late, man?
    Get some sleep; we want you around a long time.

  • @waynethompson8416
    @waynethompson8416 3 роки тому +2

    Great video Terry!
    Where in the world did you find a Collins S-Line style case? I have several projects that I want to put in such a case, and have been unable to find the cases. Are cases like the one you have available to purchase somewhere? If so, where?
    I would love to see the schematic.

    • @d-labelectronics
      @d-labelectronics  3 роки тому

      Hey man, The case was a swap meet special. Send me a direct e-mail and I will forward the schematic

  • @KonstantinGrigoriadis
    @KonstantinGrigoriadis 3 роки тому +1

    Hi Terry, great Video as always!
    What is the Output power of the VFO in Milli-watts that is necessary to drive the mentioned Transmitters ?
    I like you Videos, even Thu I am not a Ham, I am in the Custom Prototyping Design, but always loved tubes and Tube related stuff. Cheers for Vienna/Austria

  • @f.k.burnham8491
    @f.k.burnham8491 3 роки тому +1

    Terry- Why did you use an 0A2 instead of a zener? Also if you use 1847 bulbs, they draw less filament current.

  • @nolawalter6273
    @nolawalter6273 7 місяців тому

    Do you have a kit or parts list/schematic? Always wanted to do this. Have a Health cabinet for it