Solid State Relay || DIY or Buy

Support me for more videos:   / greatscott   Previous video:    • Make your own Simple Theremin   Facebook:   / greatscottlab   Twitter:   / greatscottlab   Relay video:    • Electronic Basics #32: Relays & Optocouplers   Triac video:    • Electronic Basics #20: Thyristor, Triac ||...   More project information (schematic, parts list,...) on Instructables: https://www.instructables.com/id/Make... You can get the commercial Solid State Relay here (Affiliate link): Aliexpress: https://s.click.aliexpress.com/e/_dXO... Ebay: http://rover.ebay.com/rover/1/711-532... Amazon.de: http://amzn.to/2hLR9F9 Parts list (incomplete, see Instructables for more, affiliate links): Aliexpress: 1x MOC3020 Optocoupler: https://s.click.aliexpress.com/e/_dZQ... 1x BT138 Triac: https://s.click.aliexpress.com/e/_dXj... 1x 330Ω, 3x 1kΩ Resistor: https://s.click.aliexpress.com/e/_dTP... 2x PCB Terminal: https://s.click.aliexpress.com/e/_dYb... 1x Heatsink: https://s.click.aliexpress.com/e/_dXw... Ebay: 1x MOC3020 Optocoupler: http://rover.ebay.com/rover/1/711-532... 1x BT138 Triac: http://rover.ebay.com/rover/1/711-532... 1x 330Ω, 3x 1kΩ Resistor: http://rover.ebay.com/rover/1/711-532... 2x PCB Terminal: http://rover.ebay.com/rover/1/711-532... 1x Heatsink: http://rover.ebay.com/rover/1/711-532... In this episode of DIY or Buy we will have a look at solid state relays, find out how they work and when to use them and find out in the end whether it would make sense to create our own DIY solid state relay or whether we should buy the commercial product instead. Music: 2011 Lookalike by Bartlebeats Killing Time, Kevin MacLeod (incompetech.com)