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Ok thanks, that takes care of that. Now I have to figure out if something is wrong with the RF probe. When I go to use the probe the unit is quiet. I screw that thing in and all sorts of buzzing goes on and the gain has to be turned almost all the way down or the amplifier is highly over-driven and nasty sounding, but it does pick up signal.
The buzzing is like the 60 cycle hum the unit had before I replaced all four 20mfd caps in the power supply. Before that the thing buzzed or hummed whether the probe was connected or not. Now the thing simply doesn't like the probe being connected or else I just have never used one of these and it should make noise, which I doubt; not this much noise. The probe settles down quite a bit when I grab the ground wire; or if I connect the ground wire to the tip it gets quiet. The instructions simply say that touching the tip should cause a buzz or hum. Sure would be a good time to have a known good probe to compare! Not happening.... I wonder if the cap inside the probe could cause the condition?
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Last edited by Tubejunke; 03-16-2016 at 06:38 PM.
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