I have just purchased a [url=https://www.amazon.com/GlobMarble-Concrete-Vibrating-CVM-30/dp/B008IJQLZI/ref=sr_1_7?dchild=1&keywords=concrete+vibrator+motor&qid=1591269889&sr=8-7]concrete vibrator motor[/url]. I need a variable speed controller for this motor. Any suggestion is much appreciated.

Good afternoon, Our home has a battery powered wired doorbell installed. The previous owners of our home had a wireless doorbell installed with the button mounted over the wiring outside. I'd like to install a wired button to utilize the doorbell that is built in to the house, however am having trouble figuring out which wire goes to what. A pic of the doorbell is attached, as is a pic of the wires coming out of the house to hook the button up to. The wires in the doorbell are black and red, where as the 3 wires coming out of the doorbell hole are red, white, and blue. A voltage indicator shows one or more of these are live. I'm guessing it's one that is going back to a transformer for a hard-wired doorbell. That said, this doesn't explain why there's a black and red wire coming out of the doorbell, but red/white/blue coming out of the hole. How do I go about hooking up a new button to work with the battery/wired doorbell? Thank you!