anonymous
14 June 2002
I was in a shop today testing preamps and the salesman freaked when I turned on phantom power(on mistake). We were using a tube mic, the RODE NTK and he said that the phantom power would harm the tube in a tube mic's power supply. I have never heard this, is this true?
d./
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Some tube mics have an external PSU of some kind, some 48v, some
Some tube mics have an external PSU of some kind, some 48v, some not and various crazy pin out schemes. The NTK has a dedicated PSU, so he was probably freaking out about you sending 48v TO the PSU from the desk. Of course, if the PSU is well designed, it will probably be OK, but not recommended.