https://www.amazon.com/Doorbell-Transformer-800mA-Adapter-Compatible/dp/B07PJHVJ2T/ref=mp_s_a_1_3?crid=37DTJVPMXSD5R&keywords=16+volt+power+supply+doorbell&qid=1672842601&sprefix=16+volt+power+supply+doorbell%2Caps%2C185&sr=8-3
This will work too.