Face wash gel, tart tins, water filter cartridge
What's all this about? https://www.youtube.com/user/RobertMurraySmith https://www.youtube.com/user/lasersaber https://www.youtube.com/user/neatpete45 https://www.youtube.com/watch?v=UUNX7g-EJYk
Measuring a digital multimeter with another one
One of those daft things you do when there's nothing on telly - measure a DVM using another DVM.
New solar connectors
Summer's finally here and I'm making new connectors for my solar power system.
Playing with supercapacitors
Fun with a 100F 2.7V supercapacitor 2PCS Farad Capacitor 2.7V 100F 22*45MM Super Capacitor 2.7V100F #Unbranded http://www.ebay.com/itm/-/351401443909
What’s inside a garden hose water timer unit
Full teardown and analysis of the electronics, mechanics and hydraulics of a garden hose water timer device.
Update: cheap 5v boost converter performance
Some interesting test results on the 5V DC/DC boost converter which cost just 55p ($0.77).
Ebay cheap cheerful: #3 – dc/dc boost module 5v out
For just 55p, this DC/DC boost converter with a 5V output is good value. It produces enough output power to…
Julian’s postbag: #65 – a momentary lapse of polarity :
Lovely electronics stuff from China blown up by my extreme stupidity. Become a Patreon patron and support Julian's Postbag videos…
$21 power bank destroyed – lots of magic blue smoke
While making my latest Postbag video, I put a lithium cell into a very expensive USB power bank the wrong…
Ebay cheap nasty: #2 – 16340 lithium cell 1000mah
Just 55p on eBay (about $0.77), this 16340 lithium-ion cell is cheap and nasty. Just 288mAh measured capacity and a…