When we changed outside door bell button, we lost the bell tone and have only the buzzer. How do we get a nice tone back?

I'm guessing that the old push button was either dim or not lit at all, and new outside push button glows...If that's the case, I think your transformer is a bit weak, possibly due to the slight increase in load with new button's light. Buzzing is a key clue - the solenoid (electrically powered plunger whose motion would cause the ding dong) is sitting there vibrating, instead of moving cleanly.Assuming your doorbell is a 16V model, Nutone makes a slightly more powerful doorbell transformer, model C907 (Sold on Amazon) - this one can handle two or three doorbells, so it has enough oomph to handle normal loads... Changing a transformer may require a licensed electrician in your area, so please proceed with caution.Good luck!

What can of transformer does it require: ac or dc?

It uses a 16V 10VA transformer, Nutone/Broan c905 doorbell transformer if you want the OEM part, available on Amazon. Do not use a different voltage, you unit either will not work if it a lower voltage or it will burn up your unit if it is a higher voltage. Do not use a DC transformer, you unit will not work on DC voltage.

Does this unit need a diode at the button?

if you use the 16 volt power supply for this unit, you don't need a diode

Is this compatible with a blink video doorbell?

Thank you for your question on model LA11WH. Unfortunately, we do not test our products with those of other manufacturers and we cannot guarantee compatibility.

Broan Nutone La11wh Door Chime White Textured | Desertcart Antigua and Barbuda

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Sold byAmazon Antigua and BarbudaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔔 Elevate your entryway with sound and style that never quits!

EASY UPGRADE - Direct replacement for popular models without rewiring—upgrade your home’s welcome experience hassle-free.
PERFECTLY SIZED - Compact 2.39" x 8.27" x 5.49" design fits effortlessly in your entryway without overpowering your style.
TIMELESS AESTHETIC - White textured finish blends seamlessly with any modern or classic home décor.
NEVER MISS A VISITOR - Dual chimes let you instantly know which door is ringing—front or back, no guesswork.
WIRED FOR RELIABILITY - Powered by a 16V transformer, say goodbye to dead batteries and hello to continuous service.

The Broan-NuTone LA11WH Wired Door Chime features a durable white textured finish and dual-tone chimes to differentiate front and back door visitors. Powered by a 16V transformer (sold separately), it ensures uninterrupted, battery-free operation. Compact and easy to install, it replaces older models without rewiring, making it a reliable and stylish upgrade for any home.

Specifications

ASIN	B001EG272I
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#111,561 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #108 in Door Bells Chimes
Color	White Textured
Customer Reviews	4.2 4.2 out of 5 stars (1,984)
Date First Available	October 6, 2008
Finish	White
Included Components	door chime
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	1.1 pounds
Item model number	LA11WH
Manufacturer	Broan-NuTone
Number Of Pieces	1
Part Number	LA11WH
Power Source	AC
Product Dimensions	2.39 x 8.27 x 5.49 inches
Size	(Pack of 1)
Style	Door Chime
Type of Bulb	LED
Voltage	16

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