[Josh05]

Hey guys, I've just recently brought a little desktop tube amp for my Grado SR225i's. I brought it off a website called Freds Amplifiers here is the exact model.
 
http://fredsamplifiers.com.au/index.php?main_page=product_info&cPath=2_20&products_id=16
 
I'm really happy with how it sounds, my only complaint is having to wiggle or pull the tube out every now and then to stop the volume making a noise when i turn it up or down. So i was wondering if buying a better quality 12AU7 tube like this would be worth it or not? would it fix the problem and improve the sound? Any other suggestions and help would be awesome, I'm a massive noob with stuff like this. Thanks
 
http://www.ebay.com.au/itm/Genalex-Gold-Lion-12AU7-ECC82-B749-tubes-Brand-New-Matched-Sections-/150944569284?pt=US_Home_Audio_Amplifiers_Preamps&hash=item2324ff57c4

 

[TrollDragon]

Have you tried contacting the man who made it?
I am sure Fred can help you out with the problem.
http://fredsamplifiers.com.au/index.php?main_page=contact_us

 

[kramer5150]

Sounds like a scratchy pot.  A tube replacement might not alleviate that.  Definitely contact the amps builder, see what he can do for you.