In this video I begin assembling a multi-RTL by removing the crystal from one of the RTL-SDRs (R820T or R820T2) and also one of the capacitors. Following that, I begin soldering on the wires connecting the two RTL-SDRs, where they will both share the same crystal.

Special Thanks:
– Josh (First elite supporter!)

Warranty Disclaimer: Modifying your RTL-SDR will almost definitely void any warranties you might have.

Safety Disclaimer: Soldering irons are tools that should be handled properly as they can easily cause injury. Soldering thread containing lead is toxic and should not be exposed to open wounds. If you do a lot of soldering, then you should consider wearing some thin gloves. (Not plastic!)

Always wash your hands after handling lead. If you’re going to eat something while soldering, then wash your hands first. Keep food and drinks away from your working table too.

Lead-free solder thread is not without risks too, as it’s harder to use, and the increased fumes it may produce are in return more toxic. Consider using a fume extractor if you do a lot of soldering.

Soldering Iron:
– Velleman VTSS4N (

Soldering Thread:
– 60Sn/40Pb (60% Tin / 40% Lead) 0.6mm with rosin/resin core (

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Twitter: @CrazyDaneHacker