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| Silly tread |
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| 001:
Silly tread |
| Benta:
It can be injected anywhere in the amplification chain. The most likely place he should check first is whether the guitar pickups are the culprits. Just unplug the guitar and see if it goes away. After that, the search gets more complicated. |
| diyaudio:
--- Quote from: 001 on November 25, 2018, 02:28:16 pm ---Hi My sons friend has marvelous problem with his electric guitar It is some "computer" whistling and audible "noise" at about 1kHz in the amplifier. And he says what he play at datacenter basement :palm: How to eliminate EM problem? --- End quote --- Ground loop problem. use another cable. |
| ebastler:
--- Quote from: diyaudio on November 25, 2018, 04:49:22 pm ---Ground loop problem. use another cable. --- End quote --- Both, your analysis and the proposed countermeasure, seem a bit arbitrary. Could you elaborate please -- what leads you to those conclusions? |
| Benta:
--- Quote from: ebastler on November 25, 2018, 04:54:31 pm --- --- Quote from: diyaudio on November 25, 2018, 04:49:22 pm ---Ground loop problem. use another cable. --- End quote --- Both, your analysis and the proposed countermeasure, seem a bit arbitrary. Could you elaborate please -- what leads you to those conclusions? --- End quote --- Not just arbitrary, but seems to pulled out from between the buttocks. As an old rock guitarist and electronics engineer, I've experienced the issues with electric guitars and amplifiers. |
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