Fishman Rare Earth Blend replica - diyAudio
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Old 18th July 2013, 06:45 PM   #1
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Join Date: May 2012
Default Fishman Rare Earth Blend replica

Hi All!

Just wanted to share my, entirely handmade, Fishman replica project.
Here are the photos and some technical data of this mic/magnetic pickup system I have built, it took a month of constructing and testing.

The Fishman replica pickup system:

1. ECM MKE-5B with miniature audio-transformer (40-16000 Hz, 250 Ohm, 4,5 V. Made in USSR)
2. Magnetic pickup of Single and Hum-canceling options (On/Off) - 3,4 kOhm and 1,6 kOhm
3. Weight: 2,5 Oz (70 gr)

The pickup is built using neodymium magnet disks, magnet wire 43" AWG, three batteries LR44; the housing of the pickup is built of different plastic components which are easy to shape and available around.

Testing:
Just a few aspects about the overall sound and quality... switching into the laptop's mic In, the pickup has almost '0' hum even with the single coil; with switched hum-canceling coil and mic, the pickup is absolutely clean, that can be considered as a good result.
The housing of the pickup and all the internal connections have 3 different layers of shielding in total, I think, that is why the pickup has such a clarity.
Note: turning the mic closer to the top, even 1-2 mm out of the sound-hole makes it sound more natural; in the body of the guitar it has more 'boxy' sound...
More photos on my website (in Georgian)
Here are the pictures:


Click the image to open in full size.

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Last edited by Schertler; 18th July 2013 at 08:46 PM.
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Old 18th July 2013, 07:32 PM   #2
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Location: Victoria, B.C.
Beautiful work!

jeff
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