Hello again!
Today, I have something springy for you. A powerful car charger for two of your favourite electronics!
…except I broke it during first use 
Prepare for some Wan Hung Lo qualitty goodness!
I bought this fine piece of equipment for 2.48€ at AliExpress back in November. And I got my money back.
Notice something? […]
A while ago, I wrote articles about a bargain SMD resistor set (WHL #10 ) as well as some thumbwheel switches (WHL #11). Let’s start fresh in 2017 and present the final box 
As already shown in the thumbwheel post, the initial resistor placement wasn’t perfect. I fiddled some more and I got a case and nice 4mm banana plugs for it. First, let’s see the final measurement results, done with a calibrated Keithley 2700 6 1/2 digit DMM in 4-Wire (Kelvin) mode.
Original performance:
Final performance:
Yep, the 1Ω data point still violates the 1%/10000ppm spec (1,9%). […]
