Can anyone explain the importance of glue on the Flyback Transformer?

[68kPlus]

I hope someone can, because I do not understand why it's there and what it does.

 

[bibilit]

IIRC to avoid vibration / resonance

 

[68kPlus]

IIRC to avoid vibration / resonance

Oh right okay. So if it's cracked what will happen?

 

[bibilit]

Not much, a lot of them are cracked and still working, but can be wrong...

 

[techknight]

It is only there to prevent mechanical resonance, because if the core is too loose, it can cause ringing that some people can hear. Also, the core gap is very critical to the operation of a flyback transformer, so the glue helps prevent the core from moving too much and causing the core gap to shift.