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Adapting a Dynamic Microphone to the RØDE Filmmaker Wireless Microphone Kit
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graybeard:


In this video I make measurements of the (RØDE) Rode Filmmaker wireless microphone system.  The measurements completely define the input circuitry and system gain.  Then I design a simple preamplifier to adapt a dynamic microphone to the filmmaker.  I go over the design process for the preamplifier and explain how it works.  I use the IV curves of the JFET and graphically solve for the quiescent point of the preamplifier.  In the end I do a comparison between the electret condenser microphone that comes with the filmmaker kit and an adapted Sony F-27 cardioid dynamic microphone.

You can find a copy of the charts here with additional measurements that are not included in the video


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