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Nollman

U47 FET project
« on: April 16, 2018, 10:23:25 PM »
I got my FET circuitboard last week and finally had time to get that project rolling. I spent the day machining parts. I have some stock left over from my U48 stereo mic that is an ongoing project so I used it for this build.
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Nollman

Re: U47 FET project
« Reply #1 on: April 16, 2018, 10:24:42 PM »
The body tube being machined.
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Nollman

Re: U47 FET project
« Reply #2 on: April 16, 2018, 10:25:44 PM »
The first cutout done
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Nollman

Re: U47 FET project
« Reply #3 on: April 16, 2018, 10:26:39 PM »
The second window finished. I then clean them up with a file and some sandpaper.
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Nollman

Re: U47 FET project
« Reply #4 on: April 16, 2018, 10:28:18 PM »
The body shell and bottom bell assembled.
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shabtek

Re: U47 FET project
« Reply #5 on: April 16, 2018, 11:25:11 PM »
Wow, looks like a good time
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"really fine players do not use stomp boxes or master volume, they match the amp to the room and turn it up to 11.  Stevie Ray, BB King, Albert King, Duane Allman, Dicky Betts, Louis Armstrong"
   -CJ

Nollman

Re: U47 FET project
« Reply #6 on: April 17, 2018, 10:11:37 PM »
And the Mesh is in!
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zephyrmic

Re: U47 FET project
« Reply #7 on: April 18, 2018, 09:35:23 PM »
Looks great!  Very professional.
zephyrmic
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Nollman

Re: U47 FET project
« Reply #8 on: April 21, 2018, 10:33:36 PM »
Frame rails are fitted. I used a hacksaw and a file to rough them out.
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Nollman

Re: U47 FET project
« Reply #9 on: April 21, 2018, 10:36:01 PM »
Cut a channel for the XLR keyway with a tiny end mill and a file then drilled an access hole for the set screw through the skirt of the baseplate. XLR installed!
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Nollman

Re: U47 FET project
« Reply #10 on: October 15, 2018, 01:52:28 PM »
Apparently I waited too long to order the parts for this and there are no JFETs available (   RF JFET Transistors N-CH -25V 10mA BULK Engineering Hold). does anyone know a source for these or an alternative?
https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=4bdecadc37
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Erik2345

Re: U47 FET project
« Reply #11 on: October 15, 2018, 04:14:13 PM »
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Phrazemaster

Re: U47 FET project
« Reply #12 on: October 16, 2018, 01:48:41 PM »
Quote from: Nollman on April 16, 2018, 10:23:25 PM
I got my FET circuitboard last week and finally had time to get that project rolling. I spent the day machining parts. I have some stock left over from my U48 stereo mic that is an ongoing project so I used it for this build.
What beautiful work! Hope you get it finished!
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