WWII tuner question.

Discussion in 'Homebrew and Kit Projects' started by K5DRT, Sep 2, 2018.

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  1. K5DRT

    K5DRT Ham Member QRZ Page

    I got this from my WWII Vet Dad that worked at Collins radio. It seems he modified it but I dont know if its complete. Anything you can tell me about it would be appreciated.

    Attached Files:

  2. K5DRT

    K5DRT Ham Member QRZ Page


    Attached Files:

  3. W0KPX

    W0KPX Ham Member QRZ Page

    Appears to have originally been a BC-306 antenna tuning unit used with the BC-375 transmitter. Looks like the only original components remaining are the switch and the terminals.
  4. KB4QAA

    KB4QAA XML Subscriber QRZ Page

    Ah, the joy of Home Brewed equipment with no schematic! :)

    If you want to know how it works, you need to get pencil and paper, draw in all the components and then trace all the wiring.

    If you still need help, post the diagram! Good luck! b.
    N2EY likes this.
  5. K6BSU

    K6BSU Ham Member QRZ Page

    Appears to have one variable inductor and one variable capacitor to match a long wire, or random wire antenna. You have most of the parts for a nice T-Match for an unbalanced output, but you would need two variable caps.

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