The Best Diagnostics Tool for the ZX Spectrum?

In this video I build and try out a brand new diagnostics tool for the Sinclair ZX Spectrum line of computers. The SteamCard Pro was created by Dave "Steamy" Briggs and if you would like to purchase one of these amazing cards you can contact him either on the Spectrum for Everyone Facebook page: facebook.com/groups/spectrumforeveryone Or via his email address: daveb1971 (AT) btinternet.com SECOND CHANNEL! https://www.youtube.com/@morefunfixingit Ko-fi page https://ko-fi.com/morefunmakingit Amazon Wishlist https://www.amazon.co.uk/hz/wishlist/ls/I5EGNMXIW5PC?ref_=wl_share The Retro Hardware Discord Channel https://discord.gg/5fmPMzU More Fun Website https://www.morefunmakingit.co.uk/ Facebook https://www.facebook.com/MoreFunMakingIt BlueSky https://bsky.app/profile/morefunmakingit.bsky.social 00:00 Intro 01:39 Whats in the box? 03:36 The SteamCard Pro 13:17 Let The Soldering BEGIN 13:38 Mosfets 15:43 Resistors 21:16 Capacitors 22:57 Diode 23:29 Reflow 26:38 Topside 27:05 Power