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68 ohm resistor got replaced. So far amp is working fine. Whoever owned the amp before me probably had a power tube or maybe the rectifier tube go down and cause that resistor to roast. Glad it is fixed.

I have an update. I got back inside the amp again and found a resistor that I didn't see before that has gotten hot enough that it was slightly crispy. The color bands could still be read but it has definitely been semi-roasted. The redplating power tubes may have caused this or the resistor...

Hi, I was wanting to know if anyone on here has ever took a bias reading to see how much current stock Mesa tubes draw with the Lonestar special? I know they are class A and run hot but, I have recently picked up a used one that I am concerned about. I have not had any problems with the 5y3...

I was able to spend a whole lot more time with my Edyne the other day. I took the chassis out and looked around in there to see if there was any thing that looked faulty or messed up. I made sure my filter caps were drained before doing anything and did some cleaning in there to remove any small...

Thanks to you both for your thoughts and experiences. We had some or our electric in the house redone 7 years or so ago and it is pretty good now. I used to have a terrible time with the power around here before the work was done but all is well now. My other amps all sound really good with no...

I have a small problem with a used electradyne I purchased a few weeks ago. If I set the trim switch on the back of the amp to any setting other than the "clean" trim setting I get a pretty good amount of buzz/hum type noise on the clean channel only. The vintage Hi Low setting sound fine. Now...