| Biffa |
Does anyone have a simple circuit to strip phantom power from an input. I have a mic level input on a camcorder that has non-switchable phantom power. Presumably some sort of DC blocking Caps arrangement would be required?
Many thanks
Biffa |
|
|
| moamps |
What type microphone and input connector is used?
(stereo input thru 3.5 jack or mono-balanced thru XLRF) |
|
|
| loonatron |
| If it was a normal XLR type mic connector you could disconnect the 6.8k resistors that usually connect to pins 2 and 3 but as for camcorder mic power I have no idea. |
|
|
| Biffa |
It's an XLR 3 pin female that delivers 48V in the normal way ( Distributed on pins 2+3 through 2 x 6K8 resistors so pins 1-2 read 48V as do 1-3). I need to plug a line signal, padded down 60 dB to mic level, into this input without getting power back to the line output. I figure Caps inline with each power leg would do the trick but I don't know values required.
Thanks
Biffa |
|
|
| pinkmouse |
| 10uF is pretty common in this application. |
|
|
|
