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  1. J

    Hum from 5E3 after adding USB thermal fan more when using A/B switch to change from channel 1 to channel 2

    Also, it may just be a cheap product. Thanks for your input. I will like around later this week and try to post results
  2. J

    Hum from 5E3 after adding USB thermal fan more when using A/B switch to change from channel 1 to channel 2

    I did unhook the switch, but I need to remove it completely and test again.
  3. J

    Hum from 5E3 after adding USB thermal fan more when using A/B switch to change from channel 1 to channel 2

    Hi folks. I have 6 or 7 5E3 Deluxe clones. Started by building a kit from Stuart Mcdonald, because it was a complete kit with instructions. I got brave,(cheap/stupid) and bought an inexpensive kit on EBay from China. Got it together and struggled for quite some time but finally got it sorted...
  4. J

    Hello

    Hello, my name is John, and I am fairly new to the amp building world. I have assembled 2 5F6 clones, and several 5E3 models, my favorite of which is a copy of the Robrob Deluxe, which I included the pre inverter master volume, negative feedback switch with cathode bypass, and lead channel...




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