The amazing MD421 HN very conveniently has a step ups transformer inside.
The high impedance is ideal to connect to a K117 JFET for extremely low noise.
The internal low cut is ideal for using the microphone at small distance, is this a Pleiadws filter?! (Inductor connected in parallel).
A Pleiades K117 preamplifier was built inside the Tuchel connector. It consists of just a K117 and a 220ω source resistor. A schematic can be found on earlier or later posts. The drain of the K117 is connected to the signal cable to iPad. The iPad has internally the drain resistor and supplies power as well.
The sound was amazing as expected.
The iPad's GarageBand microphone recorder low cuts too, so the microphone needs to be used at 1in which is convenient as ambience and noise is out. When the low cut is off the mic needs to be used at about 9in?
The high impedance is ideal to connect to a K117 JFET for extremely low noise.
The internal low cut is ideal for using the microphone at small distance, is this a Pleiadws filter?! (Inductor connected in parallel).
A Pleiades K117 preamplifier was built inside the Tuchel connector. It consists of just a K117 and a 220ω source resistor. A schematic can be found on earlier or later posts. The drain of the K117 is connected to the signal cable to iPad. The iPad has internally the drain resistor and supplies power as well.
The sound was amazing as expected.
The iPad's GarageBand microphone recorder low cuts too, so the microphone needs to be used at 1in which is convenient as ambience and noise is out. When the low cut is off the mic needs to be used at about 9in?
No comments:
Post a Comment