Channel

Technology Connections

6 recommended videos. Channel on YouTube

  1. 2 The US electrical system is not 120V

    Technology Connections 3 people · 7 months · since Jun 2020

    Referenced for a detailed look at how American service panels are laid out and why 208 and 240 volt supplies differ.

  2. 3 Perhaps the weakest link in the US electrical system

    Technology Connections 4 people · 4 months · since Jul 2021

    Technology Connections argues the US mains plug and socket is a weak point in the electrical system; cited in discussions of extension lead ratings and why appliances forbid them.

  3. 4 The Superheterodyne Radio: No really, that's its name

    Technology Connections 4 people · 3 months · since Apr 2020

    An explanation of heterodyning and intermediate frequencies in radio receivers, recommended as a clear introduction, with an audible demonstration of beat frequencies.

  4. 5 Thermoelectric cooling: it's not great.

    Technology Connections 3 people · 3 months · since Jan 2025

    Linked whenever someone asks about Peltier coolers, as a clear explanation of why thermoelectric fridges use a lot of power for very little cooling.