MK47 PCB tube mic kit - build thread
- Thread starter ioaudio
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rrowley said:
With mine (same setup), in cardioid, the sound from the front is good (uh, great) and the sound from the back is not good (kind of ugly sounding; certainly duller.) In omni, the overall level is lower and the sound is different, less vivid (partly because it is quieter, partly because there is more room in the sound.) I wouldn't say it is "really thin" but I could understand saying it sounds thinner compared to cardioid.
I can't tell for sure, but it sounds like your mic is behaving like mine is. It sounds so amazing in cardioid that I haven't questioned the rest.
Sorry for asking such a question, but are you two familiar with how cardioid and omni works?
Just trying to clear out misunderstandings....
Just trying to clear out misunderstandings....
gemini86
Well-known member
in cardioid your back diaphragm is disconnected, off. So you're still listening to the front diaphragm, even though you're yelling at the back of it's head.
The Frizzle
Active member
Do you think it would fit in this case?:
http://www.musik-service.de/mxl-550--551-set-prx395772760de.aspx
Its just 89€ which is like 127$.
But maybe this one is even too cheap and has plastik parts or something?
I like the look tho.
http://www.musik-service.de/mxl-550--551-set-prx395772760de.aspx
Its just 89€ which is like 127$.
But maybe this one is even too cheap and has plastik parts or something?
I like the look tho.
bobine said:
Cardioid pattern is directional. It never sounds good on other side. In omni position there is no proximity effect and the mic will sound relatively thinner compared to cardioid at close distance. Farer away, say one meter or so, there shouldn't be so big difference in frequency response.
The Frizzle
Active member
thanks duy_hoang, right your case looks better.
But actually i was thinking of mounting the MK47 inside of the MXL 550 body
I'm just not sure if it will fit.
But actually i was thinking of mounting the MK47 inside of the MXL 550 body
I'm just not sure if it will fit.
0dbfs
Well-known member
The Frizzle said:thanks duy_hoang, right your case looks better.
But actually i was thinking of mounting the MK47 inside of the MXL 550 body
I'm just not sure if it will fit.
MXL 550 Looks to be slightly too narrow at 47mm x 170mm (according to the PDF on their website anyway) but maybe you could file down half a mm around edges of the mk47 PCB? If you pick one up please let us know whether your mk47 PCB's will fit with room for everything. I saw some of the 550/551's advertised for $79/pair. Maybe you could also make a PCB that fits inside this body and still have the SDC for some franken-mic'ing action.
[quote author=The ioaudio]
Title: Re: MK47 assembly - more pics added
Post by: ioaudio on November 12, 2010, 02:12:53 pm
A 50x1mm (inner dia. 48mm) is the absolute minimum.
[/quote]
Cheers,
jb
How do you come to this conclution? Did you try to disconnect the diaphragm on the back and compare?rrowley said:
rrowley said:
You mean that the junction between the 14kOhm and 12kOhm resistor in the PSU have 48 Volt?
It should be normal that the voltage drop when you apply a load (relay)...
Not normal is that there's no drop when you rewire your capsule, probably miswiring, check with the step by step instructions.
JW
Well-known member
Hey guys,
Is this sound indicative of bad tubes, or a dirty capsule/high impedance area or something else? http://www.supload.com/listen?s=pSLcIC
Is this sound indicative of bad tubes, or a dirty capsule/high impedance area or something else? http://www.supload.com/listen?s=pSLcIC
living sounds
Well-known member
Does anyone else have the problem with the SVT-700 and similar mic bodies that the capsule sits too high, just behind the metal ring surrounding the mic basket? This is already the case with the chinese capsule, and the Beez Neez one will be at the same position. There's no room to lower the base, so the only remedy I see is to saw away the ring...
kante1603
Well-known member
Hi,living sounds said:
not sure if you meant the SCT-700 (Thomann)?
If so I was able to lower it by using a different holder (used the Thiersch capsule) bringing it about 6mm down.It nearly touched the top of the basket.Not perfect but much better than with the normal holder.Will give it a listen when my psu is done.
Best,
Udo.
The Frizzle
Active member
Thanks 0dbfs, i won't risk it then, thanks for pointing that out..
I found an inside picture of another mxl mic:
http://recordinghacks.com/images/mic_extras/mxl/MXL2006-circuit.jpg
This is the MXL 2006, which has the minimum 50mm size.
But the PCB holder does not seem to be suitable whith that shape.
So maybe MXL is not the way to go..
I found an inside picture of another mxl mic:
http://recordinghacks.com/images/mic_extras/mxl/MXL2006-circuit.jpg
This is the MXL 2006, which has the minimum 50mm size.
But the PCB holder does not seem to be suitable whith that shape.
So maybe MXL is not the way to go..
crackerzot
Well-known member
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Would someone be so kind as to help me figure out which pins on the Binder connector for my EQU47 mic shell connect to what on the MK47 board, specifically?
I've got 7 pins on the connector. Which are unused on the Binder and where do the rest connect on the PCB? I read an earlier post on the last page, but I'm still a little confused. Please forgive my ignorance. This is my first mic build project.
A friend is building the P/S for me according to the schematic on the first post. I've got my Thiersch capsule. All that's left for me to do is the connector wiring and install the capsule and the mic will be finished. Many thanks in advance.
I've got 7 pins on the connector. Which are unused on the Binder and where do the rest connect on the PCB? I read an earlier post on the last page, but I'm still a little confused. Please forgive my ignorance. This is my first mic build project.
A friend is building the P/S for me according to the schematic on the first post. I've got my Thiersch capsule. All that's left for me to do is the connector wiring and install the capsule and the mic will be finished. Many thanks in advance.
living sounds
Well-known member
kante1603 said:
Yes, I've got a similar mike (same factory and model, different brand). But then you get it closer to the metal at the bottom, which isn't ideal either....
JW said:
Strange sound, doesent sound like the bad tubes I had, maybe a bad connection?
A bad capsule could be noisy or give scratching sounds when breathed on, haven't heard
sound like this from a bad capsule.
It doesent matter as long you keep record of your wiring. Ask your friend how he wired the connector on the PSU and do the soldering accordingly.
Dont forget that the U47 got the same (or similar) arrangement with the upper part of the capsule behind the ring. Maybe it's part of the sound!
kante1603
Well-known member
Sredna said:Dont forget that the U47 got the same (or similar) arrangement with the upper part of the capsule behind the ring. Maybe it's part of the sound!
@living sounds:
Yes-Sredna is right...here a link to pics of the original (scroll down to the 10th pic!):
http://www.jogis-roehrenbude.de/Roehren-Geschichtliches/Neumann-Mikro/U47/U47.htm
Therefore mine must be mounted nearly absolutely right-can´t wait to get this mike up and running!
Cheers,
Udo.
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