Sometimes a grid resistor will fail when a tube goes. Also it's a good idea to replace the phase inverter tube when doing the power tubes (if your amp has one, that is)
New tube problems - need help
A few weeks ago i shorted an output tube on my Quicksilver mid-monos.
This afternoon I finally got around to replacing the tubes with a brand new set (matched quad) of of eh-kt88s.
the issue is that since I installed the new tubes in the amps I am unable to bias the amp that shorted? No matter the bias setting the led indicator light for the bias never lights up.
By feel, it seem that amp is running hotter as well.
The amps sounds found fine, the image is centered and the dynamics are spot on.
Do I need to worry?
Any idea what the problem may be?
I will start to swap tubes between amps to see if it is tube issue or internal wiring problem. Once done i will report back.
This afternoon I finally got around to replacing the tubes with a brand new set (matched quad) of of eh-kt88s.
the issue is that since I installed the new tubes in the amps I am unable to bias the amp that shorted? No matter the bias setting the led indicator light for the bias never lights up.
By feel, it seem that amp is running hotter as well.
The amps sounds found fine, the image is centered and the dynamics are spot on.
Do I need to worry?
Any idea what the problem may be?
I will start to swap tubes between amps to see if it is tube issue or internal wiring problem. Once done i will report back.
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- 5 posts total
- 5 posts total