Atlas Electra Theatre noise. Anyone else who has this have this issue?

I have the earlier released Atlas Palace Theater and that also has the high-pitch screechy noise that is heard when the room is generally quiet.  I think this same noise comes from various Miller Engineering luminous motion signs; the pitch/frequency changes when the light patterns changes.  IIRC has something to do w/ the light unit control board.  Not sure if Miller Engineering also produces these animated signs for Atlas-O.

Wow! That is very irritating! I have some signs/ornaments that do that, but, not quite that bad. I had to quit using them.

Sounds pretty normal/typical, everything from Miller does it as Keystone mentioned,

This one might be a bit on the louder end, but its a bigger accessory. Even the backlight on Lionels Legacy remote makes a whine. It seems worse when you focus on it. run your trains and forget about it.

At this point, I'd be more worried if I couldn't hear it, indicating a more serious non train related problem LOL!

That would be the high frequency power supply that steps up the voltage for the electroluminescent display.  Depending on the design the frequency may be in the audible range.  The modulation is probably due to varying load as the display changes.

This is similar to the squeal from the scan frequency in old TVs.  Some can hear it, some can't.  Once you hear it you can't unhear it.

However, this seems overly loud and low in frequency to be so easily recorded.

Appreciate the responses as this sound is more than should be present. May need to see another new one. Maybe a trip to a hobby shop that has one

Same sound my Menards Red Owl store makes. Normal, but noticeable.

Jim R. posted:

Same sound my Menards Red Owl store makes. Normal, but noticeable.

Red Owl was so bad, I turned off the blinking owl.  I also run the Red Owl at 2.4 vdc to get them dim enough to match most of the other buildings.

Mine is loud as well.  Works perfect but the noise is noticeable.

I would not be concerned.

Thanks for all of the replies as this was a first plug and play and was not sure.

It appears from the replies this is normal and not unusual and was also confirmed in conversation with Atlas.

It is a great accesssory and gets a lot of compliments especially from my family who saw it over the holidays.

Again thanks to all for your feedback

jjwyatt posted:

Thanks for all of the replies as this was a first plug and play and was not sure.

It appears from the replies this is normal and not unusual and was also confirmed in conversation with Atlas.

It is a great accesssory and gets a lot of compliments especially from my family who saw it over the holidays.

Again thanks to all for your feedback

Now the important question?  What is the title of the movie you are showing?  Mine is from a National Lampoon movie "Earth Girls are Easy"

National Lampoons Christmas Vacation 

“‘Tis the season to be Mary”

if you seen the movie you understand that quote