У вашего броузера проблема в совместимости с HTML5
In this video I show how I built a 4 loop switcher. These are useful for making pedals which are not true bypass into true bypass, shortening your signal chain length by bypassing large loops of pedals when not in use, and for quickly switching off or on more than one pedal at a time with a single footswitch.
Info which I adapted to make this pedal:
https://www.stewmac.com/How-To/Online_Resources/Learn_About_Guitar_Pickups_and_Electronics_and_Wiring/Build_this_bypass_pedal_to_turn_your_stompboxes_OFF.html
Gear I Use:
Camera - Sony a5100 camera - https://amzn.to/2YmfrWz
Light - Neewer 176 LED - https://amzn.to/2On35sJ
Strings - Ernie Ball 7-String Power Slinky Nickel Wound Set, .011 - .058 - https://amzn.to/2CAwRFT
Guitar - ESP LTD EC-407B - https://amzn.to/2CFSrsJ
Microphone - Shure SM57 - https://amzn.to/2CDh6Oe
Microphone - Rode NT1-A - https://amzn.to/2WmVrBA