Running phantom power line next to output transformer = Bad?

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J

jwhmca

Well-known member
Joined
Jan 28, 2009
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So I'm trying to layout my 48v, right? And I find a good way up to the front panel for the switch, but notice that it will run RIGHT next to the output transformer...

(Standard API type mic pre)

Do you all think the Magnetic flux on the output trans will modulate the 48?
 
Should not be a problem.. +48V will have it's own decoupling caps to ground so should remain relatively clean, and is fed to mics common mode through 6.81k resistors anyhow...

You may want to put the decoupling cap for 48V line on other side of transformer run.

JR
 
It's d.c voltage so it doesn't radiate like a.c.
and on a low impedance lines anyway
never hurts to have neat wiring practice though
 

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