2. amps-preamps
  3. 160976-99611

Power Amp

My power amp keeps burning up the power tubes.  I get maybe 4 months out of them  . I have use three different type of tubes that are recommended for the amp. Can anyone help, why this is happening, are all of the power tubes bad?
128x128mcallij1
ebm
9,311 posts
 
Your amp must run at a high very current as tubes should last at least 1 to 1 1/2 years.What brand id it?
yogiboy's avatar
yogiboy
5,504 posts
 
Something is amiss with your amp. I’ve been using the same power amp tubes for over ten years and they are still working fine!
bsmg
296 posts
 
Yeah, something is wrong with the amp....most likely the power tube auto biasing section of it.
lowrider57's avatar
lowrider57
5,397 posts
 
Does your amp have auto biasing or do you set the power tube bias manually?


ebm
9,311 posts
 
HELLO!!!!
More to discover