2. amps-preamps
  3. 1111774099

Cary SLI-80 Tube amp suddenly blowing fuses

Very strange problem. Everything works and plays fine, however, the past 2 days I have blown the ac fuse (3 amp slow blow 250v) twice now! The bizarre thing is that it only blows when the Cary is in a resting state ~ for an hour or two. When I am playing music, everything is fine! Strange. Could it be random power line surges? Do you think it is a deeper problem within the 6 month old Cary? Should I swap out the power cord?

Thanks,

Jason
jfiluk

Showing 3 responses by hedgehog

hedgehog's avatar
hedgehog
183 posts
 
Doesn't Cary recommend measuring mA, not mV, when adjusting bias?
hedgehog's avatar
hedgehog
183 posts
 
The manual I received with the amp state that one uses mA to bias with. I have had no trouble biasing the amp. It's actually much easier than adjusting bias on the VTL amps I've owned.
hedgehog's avatar
hedgehog
183 posts
 
John, you're definitely more on the ball than I am when it comes to this stuff. I've only owned VTL amps, and the Cary. With the VTL amps, one measures the voltage vs. the amperage. Of course, using your formula, it looks like one is actually indirectly measuring amperage?
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