Inside a single-use electrosurgery/cauterising pen
This is a common tool used by surgeons to make clean cuts that don't bleed. It's a probe that uses…
eBay’s biggest ioniser module depotted (with schematic)
This high voltage module contains a very traditional, but simple circuit to boost the mains supply voltage up to several…
Poundland lithium cell vs the mighty AvE hammer
I thought it might be a good idea to use AvE's bigger copper swing press to drive a nail through…
Excellently awful eBay trash (with schematic)
I'll make a wild guess that this product was pushed out fast to cash in on the pandemic. It's an…
DIY USB customisable LED cluster with files
A project that uses a small PCB and optional 3D printed case (not needed) to create a very simple spray…
Diagnosing a faulty PSU
A very common PSU fault on a fairly nice power supply from a media player.Don't be fooled by the cheap…
Russian Nuclear Corporation molecular disruptor
This thing actually does disrupt molecules. By applying a high voltage to needle tips in front of oppositely charged rings…