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Old 14th August 2012, 05:00 PM   #1
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Default My DIY MM phono amp

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Old 14th August 2012, 05:05 PM   #2
kevinkr is offline kevinkr  United States
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Looks great, as does the rest of the gear in your set up, how about some details, schematics, listening impressions, measurements, etc.?
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Old 14th August 2012, 05:23 PM   #3
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Quote:
Originally Posted by kevinkr View Post
Looks great, as does the rest of the gear in your set up, how about some details, schematics, listening impressions, measurements, etc.?
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.
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Old 14th August 2012, 07:01 PM   #4
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Good job. Enjoy it!!!
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Old 15th August 2012, 08:13 AM   #5
andyr is offline andyr  Australia
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Sensational DIY case, Kraemer! I wish I could put together something like that for my own DIY JFET phono stage!

Regards,

Andy
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Old 16th August 2012, 11:35 PM   #6
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Default 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 --
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Old 16th August 2012, 11:56 PM   #7
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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.

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Old 17th August 2012, 12:09 AM   #8
ide2003 is offline ide2003  Indonesia
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woow!, I do custom design & cnc machining, with diy cnc machine, for my diy audio things, you're very lucky having that Mazak, congratulation
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Old 17th August 2012, 12:19 AM   #9
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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
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Old 17th August 2012, 02:07 PM   #10
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Quote:
Originally Posted by Kraemerkid View Post
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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