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  1. R

    I did it : bias mod in my 50/50

    Hi, did you modify the 50/50 yourself or did a tec did the mod? I have two 50/50's, one has the mod and the other doesn't. Indeed, the amp sounds much, much better with the mod. I want to upgrade the other 50/50 too and would do it myself if provided with a DIY. So, if you did it yourself, can...
  2. R

    Mesa Quad Re-cap ??

    Thanks, managed to fix the lead1 problem with a new resistor. How can new LDR's make such a great difference, as they are only for switching purposes? Regards, Ron
  3. R

    Mesa Quad Re-cap ??

    Hai, I read your posting about recapping MB Quad and am wondering how it turned out. Was it a succes? Today I retubed my Quad with 8 JJ ECC83S. Sound has improved on all wordking channels. But after one minute Lead 1 stopped en I couldn't repair it. Even with the old tubes it doesn't work...
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