Uploaded March 2022 | Updated September 2026, 2 hours ago

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Hello guys,
thanks for stopping by. This video is about the dilemma which you face after purchasing the QDX Digital Transceiver from the QRPLabs. You have to choose between the power supply voltage you want to use with your rig - 9 volts or 12 volts. I’ve chosen 9V, and this video is an explanation why. I also featuring my own creation, the 3D-printed housing for a teeny-tiny DC/DC converter which is a great way to always have 9V at this QRP transceiver independently from the source voltage.

My 3D printed housing STL files are here for download:
prusaprinters.org/prints/152388-housing-box-and-the-lid-for-the-dcdc-down-converte

I bought my DC/DC converter at my local electronics shop but I found it is also readily available at even cheaper prices on Amazon. The links below are associate links (if you go via these links and make a purchase my channel might earn some small commission at no extra costs for you. This YouTube thing is getting expensive…)

German store (convenient for European countries)
amzn.to/3N9nuiZ

World store (convenient for the USA and the rest of the World)
amzn.to/3JztNdl

Stay safe. Peace for Ukraine.
73! Linas LY2H