1. Amateur (Ham) Radio

Building A 50 Ohm Dummy Load

Two different builds of a 50Ω Dummy Load
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  • 20 1000Ω  3W resistors

    20 1000Ω 3W resistors

  • Soldering resistors to 12GA wire supports

    Soldering resistors to 12GA wire supports

  • Measuring resistor spacing

    Measuring resistor spacing

  • Repurposed paracord bracelet jig for support

    Repurposed paracord bracelet jig for support

  • Remeasuring resistor spacing

    Remeasuring resistor spacing

  • Notched dowel used to maintain wire spacing

    Notched dowel used to maintain wire spacing

  • Completed resistor network

    Completed resistor network

  • Resistance measurement.  Close enough...

    Resistance measurement. Close enough...

  • Close-up of the resistors

    Close-up of the resistors

  • Layout for the holes in the can lid

    Layout for the holes in the can lid

  • can lid drilled

    can lid drilled

  • Brass screws used for network support

    Brass screws used for network support

  • Close-up of resistor network on screws and connecting wires

    Close-up of resistor network on screws and connecting wires

  • Silicone sealant to prevent oil leakage

    Silicone sealant to prevent oil leakage

  • Completed resistor network ready to be inserted in can.

    Completed resistor network ready to be inserted in can.

  • Drugstore mineral oil

    Drugstore mineral oil

  • Adding the mineral oil to the paint can

    Adding the mineral oil to the paint can

  • Dummy load labeled

    Dummy load labeled

  • Starting another build

    Starting another build

  • Resistors and spacer

    Resistors and spacer

  • Measuring...

    Measuring...

  • Soldering resistors. Like the pants?

    Soldering resistors. Like the pants?

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    Notched dowel used to maintain wire spacing
    Completed resistor network
    Resistance measurement.  Close enough...