Preamp for shotgun mic

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Hey all, im new here, and have been a long time lurker, finally registered and have a question for you all!

I would like to make a preamp that could fit in a shoebox type guitar pedal. Powered by 9V and hopefully would get somewhere around 25+db.

I would use this for my RodeNTG2 shotgun mic into the preamp and then from the pre to a zoom h4n, current problem is the zooms preamps suck! and do not have enough gain to get clean audio. I have a bunch of transistors for left over projects, but am not sure how to achieve this! I would prefer Female XLR in and either male xlr out or 1/4" female out.

Here is a fellow that used a Kemo M040 in a similar configuration, my question is does anyone whats inside this kemo m040 unit? Just a transistor?

Picture of the unit he used, unfortunately i can not find this in the states.
m040.jpg


DIY PREAMP for ZOOM H4n RODE NTG2.wmv - YouTube



Thanks for your help in advance :D
 
Hi and welcome!
I do not know what is a shotgun mike, but, in general 25dB is a lot for a single transistor. I would give a try to the Rod Ellliot's circuit here:
Low Noise Microphone Preamp
The 12 V version should do.

Thats great ill check that out, 25db is probable a lot and not needed just to boost a mic, also would there be any that could run off a 9V battery?
 
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