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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 24th June 2016, 09:05 PM   #1
reaper996 is offline reaper996  United States
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Join Date: May 2009
Location: Idaho
Default SPP Grounding Question

I have run into a bit of trouble with my SPP amp. When I connect a CD player to the inputs, I get a hum and no music. Connect my phone and I get music with no hum. Pulling out my notes, it doesn't look like I grounded the board at the T1 red-yellow connection. I am using Edcor, so my wire is red/black. The input/volume are grounded properly and the IEC is grounded by itself.

So do I run a wire joining the two connectors at T1 red-yellow and then ground to the top plate?

I have the amp running UL.

SimplePPschemUL.gif

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Old 25th June 2016, 06:32 PM   #2
reaper996 is offline reaper996  United States
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Join Date: May 2009
Location: Idaho
Resolved the issue, it was the T1 red-yellow ground. Now I can enjoy listening to Diana Krall's Love Songs through my Coral BX-800's.
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