Ohm Speakers Model Essays

From the very beginning in the 1950's, NuTone offered outdoor Patio Speakers for their Radio Intercom Systems. The earliest Patio Stations were slightly modified Entry Door Stations with a very small 3-1/2” diameter speaker cone.

In the early 19060's NuTone began to sell larger Patio Stations which had a 5” diameter speaker cones and the Deluxe 2-piece Patio Station, included a small wall mounted Intercom Remote Control which was connect to a large, separate 8” diameter wall mounted speaker.

As new models were introduced, so were new and better designed Patio Stations. Even with the better designs, all Patio Stations have one common problem, they're located outdoors in the weather.

Sun, Rain, Snow and Wind take their toll on the paper in the Speaker Cones and sooner or later the speakers will stop working. Since NuTone Intercom Systems use speaker cones with special impedance ratings, which are matched to the system they are used in, you really can't just go out and buy any old speaker cone to replace the failed original. You need an original Genuine NuTone Part.

The problem with finding a genuine NuTone Replacement Patio Speaker Cone has always been the same, since outdoor Patio Stations are the first to wear out, any remaining stock of a discontinued model is the first to be used up. An added twist to this problem is that recently NuTone has discontinued manufacturing replacement speaker cones used in all models made between 1972 through 2008. Any remaining stock of Patio Speakers cones is already gone, so what should we do?

We will make our own Patio Speaker Cones.

The only difference between an “Inside Speaker Cone” and a “Patio Speaker Cone” is that the patio Speaker Cone has been treated to protect the paper cone in the speaker from Sun, Rain, Snow and Wind.

Protecting the paper cone is easy. We use a product called “The Wet Look” which is specifically designed to protect the paper cones from the elements and help them to last longer.


Here you can see a pair of standard 5” diameter NuTone inside speaker cones, these are both 25 ohm speakers, which are used in many models of NuTone Radio Intercom Systems made between 1972 and 2008. If you put one of these untreated speaker cones into a Patio Station out doors, it will likely last just 2-3 years before the weather rots the paper away.

Applying The Wet Look is easy, it's just brushed carefully onto the surface of the paper cone, making sure that all of the folds and creases are cover.

Let application dry over night and then apply a second coat. After it is thoroughly dried, install the treated speaker cone into your Patio Station.

If your NuTone Radio Intercom System has a deluxe 2-piece Patio Station, you will need a replacement 8” diameter Speaker Cone.


Here is a new 8” diameter NuTone 25 ohm Speaker Cone ready to be treated with The Wet Look.

Red Arrow is the treat side - Blue Arrow is the untreated side

You can see the difference once one-half of the speaker cones has been treated.


If you look carefully, you can see that with just one coat of The Wet Look, the coating looks blotchy in some areas. This is why 2 coats is needed to really protect the paper cone.

The Wet Look is commonly available to buy from many sources on-line and it's inexpensive. However a 4 oz. Jar is enough to coat between 25 and 30 speaker cones, many more than the average homeowner will ever have to do.

Since there is a real need for treated NuTone Patio Speaker Cones, we keep them in stock. Not just for our customers who send in equipment for repair, but for anyone who needs one. We don't charge any extra for the treatment of The Wet Look, we just charge for the Speaker Cone.

If you need a treated Genuine NuTone Patio Speaker Cone, contact us and we will send one to you.


NEXT UP: How to turn an “Inside Remote Station” into a “Patio Remote Station” . . . it's quite easy. . . really



NuTone Intercom Replacement Patio Speaker Cones - in stock

The demand for our treated replacement NuTone Intercom Patio Speakers Cones has been high.

We have doubled our ordering from NuTone for the 5" diameter speaker cones and we are treating them for outdoor Patio use as fat as we can.

Here is out latest batch, ready to go out.

Use this Button to Enail Us about Patio Speaker Cones

Can you Install Your Own Replacement Patio Speaker Cone?  

Yes - Yes you can!

I've had many people suggest that I make a short Video that shows exactly how to install their new NuTone Patio Station Speaker Cone themselves.

So, I made a Video for everyone to see how simple it really is.

This Video applies to all NuTone Surface-Mounted Patio Speaker Stations med from about 1974 through 2008

You can send us an email to order your Replacement Patio Speaker Cones or,

You can Call Our Office Directly to place your Order 925-743-8236


Step 1
- Pin 1 : connect to header male for potensio 5K (see image 3 or 4)
- Pin 2 : connect to one lead of ceramic cap 0,01uF, the other lead goes to positive audio socket.
- Pin 3 : connect to pin 4
- Pin 4 : connect to the ground | connect to negative lead of 100uF | connect to the one lead of ceramic cap 0,01uF and the other lead goes to resistor 10 Ohm. (see the protoboard picture)
- Pin 5 : connect to the other lead of 10 Ohm | connect to positive lead of 220uF
- Pin 6 : connect to 9V (positive) | connect to positive lead of 100uF
- Pin 8 : connect to header male for potensio 5K (see image 4)

Step 2
I'm using male header (extended) for potensio, power source, and for audio socket, so it will easy to modify with other value (specially for the potensio). But it's okay if you want to soldering right to the lead of the component.

# For Potensiometer

* We need 3 header male (extended)
* Put the same size length of the leads for upper and down side.

>> Upper side
- Left : connect to the negative lead of 220uF,
- Center : connect to positive of speaker,
- Right : connect to ground and negative lead of speaker
>> Down side
- Left : connect to the potensio
- Center : connect to the potensio
- Right : connect to the potensio

* We just need 2 header male (extended)
* Put the header upside down

Step 3
Soldering the components carefully.

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