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Post subject: Brand new Twin Reverb hummm
Posted: Fri Feb 29, 2008 3:04 pm
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Joined: Fri Feb 29, 2008 2:42 pm
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Hi,

I just received my new Twin Reverb. I bought it for my Fender Rhodes piano. Unfortunately, during shipping, one of the 6L6 tubes were broken by the plug on the power cord. After speaking to Fender service, I learned that replacement tubes must be the same color (hardness). The broken tube was blue.

I reported the damage to the place I bought the amp from and they sent me a replacement 6L6. I thought that would be fine because shipping the amp and sending another would have been a large expense for them.

So I replaced the broken tube only. The amp has a pretty loud hum in it. Nothing plugged in and all controls off or at minimum. I tried adjusting the hum balance but it will not remove the hum.

I wish I could have heard it undamaged, so that I would know what the hum level would normally be. Also, it has been a number of years since I have used a tube amp but I can't remember any of my previous amps having a hum this loud. Is it likely that maybe something else in the amp was damaged other than the tube? I have just learned that the amp uses pcb's instead of point to point so I would imagine that the pcb could be quite fraigle, especially if Fender is using ROHS lead free solder which is notorious for failure.

Can anyone offer any advice as to what I should do about this beautiful amp?

Thanks,

Danny


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