From the workbench

News

Teaching notes, project walkthroughs, and hands-on electronics guides from Gary and the Mr Circuit team.

1 post Updated Jun 29, 2026
Beginner electronics illustration showing an SCR symbol, a gate pulse trigger, and a line that stays on until current drops
beginner electronicsWhat Is an SCR? Simple Student Guide

Learn what an SCR does in a circuit, how the gate triggers it, and why this latching switch matters in beginner electronics...

Jun 29, 2026· 4 min read