Help with Mesa triple rec

[Gomez]

Hey guys

My triple rec started making a horrible whistling noise when I out the volume up.

I was wondering if someone here had a similar problem and could help me.

 

[PhilTheBeard]

How old are your tubes in it. cause once your preamp tubes start going out you will get a loud whistle noise out of your amp. or a couple transistors have gone bad in your amp. but from my experience with recto's that problem is useally caused by old preamp tubes. but just take the amp to a repair guy so he can check it out for you.