2. amps-preamps
  3. 150600-12768

Conrad Johnson Premier 140 fuse is blown

Hi Audiogoner.
I need your advise on what I should do now.
This morning, my amplifier’s fuse has blown on the left side while listening to music. 
Should I change the fuse and power it back on or should the amp be checked up by a technician?
 Thanks for the advise if any. I have no knowledge on electronics.
Calvin
dangcaonguyen
rodman99999
6,108 posts
 
Happy listening(again)!
dangcaonguyen OP
206 posts
 
Thanks
dangcaonguyen OP
206 posts
 
Hello again.
my amp is working as normal. The sound come out beautifully with no distortion in both channels. 
BUT,
when I look at the amp from the front, there is one tube out of eight total glow brighter than others. I checked the old tube in that position, and figured out that old tube was bad, I can see the smokes deposited on the glass. 
Is it just a coincidence or do I need to bring the amp to see the tech?
Thanks
Calvin
dangcaonguyen OP
206 posts
 
Never mind.
I switched tubes and the bright glow tube followed to the new position. 
Should I contact Upscale Audio to exchange the tube?
 Thanks 
rodman99999
6,108 posts
 
From indications; that would be a good/safe idea. Did you carefully follow the manual’s re-biasing procedure, for each tube, repeating it after 30 minutes? That should have also been performed, after the glowing tube was moved.
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