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Paypal's buyer protection fails

Which PSU were you using by the way? And where did you apply the 6V power? Their supplies (LSR-PS-I variety) require 5V power input, but may have the output voltage adjustable. I think they actually auto-adapt to the required output voltage.

Either way, the moral of the story is that sending money as a gift is like paying with cash. The seller could screw you in any way they want, promises or not, and you won't even have the chance of winning the dispute.
 





I applied 5,5v to the input on the driver... The 6v psu didnt even reach 6v.
Then put 5v on the modulation lines.
 


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