Instructables
loading
loading
Picture of How to silence an EL transformer
This is how to silence an EL transformer, or at least make it quieter, not completely silence it...
 
Remove these adsRemove these ads by Signing Up

Step 1: Tools/materials you'll need

Picture of Tools/materials you'll need
Tools:
-philips screwdriver 
-hot glue gun/epoxy (I used hot glue)

Materials:
-EL transformer

Step 2: Removing the cover

Picture of Removing the cover
DSC01733.JPG
DSC01735.JPG
First remove the battery cover by sliding it off. Then turn over the transformer to reveal a screw, it should be easy to unscrew, once removed lift the cover off the transformer revealing the electronics.

Step 3: Adding glue

Picture of Adding glue
DSC01739.JPG
DSC01740.JPG
Now you must add glue to the electronics. It is important that you not go over the edge of the casing so it can close, also do not cover the hole where the screw comes in.

Step 4: Finishing

Picture of Finishing
DSC01730.JPG
Replace the cover and tighten the screw.
CarolineC31 month ago

Epoxy didn't really work for me. Instead I bought a project box, densely filled it with foam and put the EL power supply inside - it barely makes any sound now.

For ease I soldiered a toggle switch to the outside of my box + removed all the battery housing and use a DC adapter instead.

IMG_1457.JPG

Oh leave it in its casing when you wrap in foam or your foam will smolder (toxically)

Huh, I have had this problem, never thought of that. Wonder if epoxy might not be better, just thinking of heat issues as your using hot glue. But, then again its probably not on for long
Gaark3 years ago
I thought this was about silencing high freq leakage >.<

All good though, cos xformer buzzing can be quite annoying :)
how does it make it quieter?
xjkh3vk (author)  The nerdling4 years ago

As a noise is created the noise is carried "in" the air, moving the air back and forth. The glue decreases the amount of air movement making the transformer quieter.