I have searched through youtube but cant seem to find if Dave has done any reviews of DIY build oscilloscope kits. He might have got one as a mailbag. I think it would be a nice topic to build and review some on teh EEVblog. I imagine that their accuracy and functions are limited but as a learning tool they have their place I think. I want to build one into a DCC model railway panel so I can see various signals, wave forms, cbus signals etc.