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Post subject: Hot Rod Deluxe III - Hum (effect loop)
Posted: Tue Jul 25, 2017 10:54 am
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Joined: Tue Mar 19, 2013 12:06 pm
Posts: 6
Hello,
Please, can you help me with this problem?
When i use my effects in the effect loop i got noise.

So i've made a few tests.

With just the guitar plugged in the INPUT... and connect a few cables in the effect loop (just cables and not effects).

With a short patch cable connecting the SEND and RETURN, i got no noise at all.
With a 3m cable, there is noise.
With a 5m cable the noise is louder.

Please, can you help me solve this problem?

Thanks,
Wagner.


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Post subject: Re: Hot Rod Deluxe III - Hum (effect loop)
Posted: Wed Jul 26, 2017 8:44 am
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Joined: Thu Aug 07, 2014 3:25 pm
Posts: 1023
You are proving to yourself that the hum is coming from the extra lengths of cable and not an amp problem.
There must be a strong radiating source nearby that it is picking up. Neon signs and big transformers radiate a lot. Your guitar makes a good detector. Anything that makes it hum will make cables hum. Have you tried it in a different physical location?


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Post subject: Re: Hot Rod Deluxe III - Hum (effect loop)
Posted: Wed Jul 26, 2017 10:16 am
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Joined: Tue Mar 19, 2013 12:06 pm
Posts: 6
Hello Tins,
Thanks for your answer.
Where i live there is a lot of noise!
I'll try to test it in other places.

I just want to make sure that this problem is not related with the amp.

I'm suspecting of groun loop too! It makes sense as there is a ground loop when using the effect loop.

If i make acable with the griund disconected in one side, is this a good test?? This way there is no ground loop.

Thanks again!!


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