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FOR INSTRUCTORS - setting up accounts and chatroom for a new polyphase course when starting a new polyphase portal course we want to create a chatroom where all members of the course can communicate. this guide will walk through the steps to set this up. 1. co...

FOR STUDENTS - accessing the polyphase chatroom Polyphase Portal runs on self-hosted open-source infrastructure. this is to ensure we hold the power to meet our specific software needs, to protect the data and privacy of our users and to allign with our collec...

HOW DO Cathode Ray Televisions and Oscilloscopes work cathode ray tubes Cathode Ray: a stream of electrons in a vacuum tube neon tubes work along a similar basis, but with different gases inside the tube in order to display dynamic images on a cathode ray tub...

video signals, cables, and terminators signals CVBS (Composite Video Broadcast Signal) including NTSC, PAL, SECAM) - when you see CVBS on a device, most likely it will automatically detect and switch between NTSC and PAL signals different ways of transmitt...