Texas grid operator urges electricity conservation through Friday as temperatures rise and many power generators are offline
![24V 40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell - - Amazon.com 24V 40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell - - Amazon.com](https://m.media-amazon.com/images/I/51U8JQ1cIlS.jpg)
24V 40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell - - Amazon.com
![Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer. - ppt download Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer. - ppt download](https://images.slideplayer.com/13/3607186/slides/slide_34.jpg)
Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer. - ppt download
![Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer. - ppt download Visualizing Radio Waves. What is this? Austin Rings Mystery 117 V isolation transformer. - ppt download](https://images.slideplayer.com/13/3607186/slides/slide_2.jpg)