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-   -   My DIY MM phono amp (http://www.diyaudio.com/forums/analogue-source/217920-my-diy-mm-phono-amp.html)

Kraemerkid 14th August 2012 05:00 PM

My DIY MM phono amp
 
http://i1141.photobucket.com/albums/...k/DSC01139.jpg

http://i1141.photobucket.com/albums/...k/DSC01144.jpg

http://i1141.photobucket.com/albums/...k/DSC01147.jpg

http://i1141.photobucket.com/albums/...k/DSC01151.jpg

http://i1141.photobucket.com/albums/...k/DSC01152.jpg

http://i1141.photobucket.com/albums/...k/DSC01157.jpg

kevinkr 14th August 2012 05:05 PM

Looks great, as does the rest of the gear in your set up, how about some details, schematics, listening impressions, measurements, etc.? :D

Kraemerkid 14th August 2012 05:23 PM

Quote:

Originally Posted by kevinkr (Post 3126378)
Looks great, as does the rest of the gear in your set up, how about some details, schematics, listening impressions, measurements, etc.? :D

The board i used is this one:

Boozhound Laboratories: JFET Phono Preamp Kit

It runs off batteries. Check it last night, getting about 21.5 volts. Very low noise because it's running off them.

I do all measurements with my ears :) and they like it!

Overall the sound is very natural. Much more clarity than any other phono amp i've heard.

Very pleased with it.

Osvaldo de Banfield 14th August 2012 07:01 PM

Good job. Enjoy it!!!

andyr 15th August 2012 08:13 AM

Sensational DIY case, Kraemer! I wish I could put together something like that for my own DIY JFET phono stage! :)

Regards,

Andy

truepaul 16th August 2012 11:35 PM

preamp project
 
I agree! Can you say more about how you built the case? I'm trying to think through options for an Armegeddon-like motor control/power supply ... Best --

Kraemerkid 16th August 2012 11:56 PM

Quote:

Originally Posted by truepaul (Post 3129316)
I agree! Can you say more about how you built the case? I'm trying to think through options for an Armegeddon-like motor control/power supply ... Best --

I used a Mazak 3 axis CNC.

Are you a machinist? It would be quite confusing if i were to tell you how i made it, if you are not machine knowledgeable.

Here are some shots of other parts i've made inside my machine and parts that were just machined.

http://i1141.photobucket.com/albums/...k/photo6-3.jpg
http://i1141.photobucket.com/albums/...k/IMG_1042.jpg
http://i1141.photobucket.com/albums/...k/IMG_0982.jpg
http://i1141.photobucket.com/albums/...k/IMG_0980.jpg
http://i1141.photobucket.com/albums/...k/IMG_0956.jpg
http://i1141.photobucket.com/albums/...k/IMG_0951.jpg
http://i1141.photobucket.com/albums/...k/IMG_0926.jpg
http://i1141.photobucket.com/albums/...k/IMG_0812.jpg
http://i1141.photobucket.com/albums/...k/IMG_0673.jpg

ide2003 17th August 2012 12:09 AM

woow!, I do custom design & cnc machining, with diy cnc machine, for my diy audio things, you're very lucky having that Mazak, congratulation :)

Kraemerkid 17th August 2012 12:19 AM

Quote:

Originally Posted by ide2003 (Post 3129340)
woow!, I do custom design & cnc machining, with diy cnc machine, for my diy audio things, you're very lucky having that Mazak, congratulation :)

I work at a job shop. They let me use my machine before and after hours to make my audio goodies :) :) :)

sakellogg 17th August 2012 02:07 PM

Quote:

Originally Posted by Kraemerkid (Post 3129345)
I work at a job shop. They let me use my machine before and after hours to make my audio goodies :) :) :)


how do you say...you suck...and say it being P.C.?

i have to say those are way flippin cool!
did u paint them?
i love the swirls, almost tribal..


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