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clip on RF chokes

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papabearjew:

--- Quote from: MacGeek on October 27, 2014, 06:38:07 AM ---PBJ,  do any of the components in the system have a three wire plug?  If so, try lifting the grounds (at least as a test).

--- End quote ---

@MacGeek,  I'll double check. I remember when I was getting terrible hum through my headphone amp I used a 3 prong to 2 prong adapter on the headphone amp power plug and it solved the problem.

MacGeek:
An isolation transformer is probably better, but lifting the third prong may help t identify the problem

papabearjew:
Where do I get an isolation transformer?

MacGeek:
I don't have a clue.  I cheat and just lift the grounds.  I expect someone on this Forum knows.

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