Necchi BU Mira

Old 03-13-2022, 05:35 PM
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Default Necchi BU Mira

I have a Necchi BU Mira that needs a new transistor; not having much luck finding one. Also, it needs a new male socket on the electronics box. No one sells the female plug that fits this socket/been told it is no longer made and cat be found anywhere. Can I just replace it with a modern, three prong one. Thanks for your help.
J. Thad
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Old 03-14-2022, 10:34 AM
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Welcome aboard. You have me confused, Are you talking about repealing he capacitor.? Can you send a pic of offending plug.


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Old 03-14-2022, 10:38 AM
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Janey must be away at the moment. Here are her directions for adding pictures.

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Old 03-14-2022, 02:07 PM
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Default Necchi BU Mira parts

Originally Posted by J. Thad View Post
I have a Necchi BU Mira that needs a new transistor; not having much luck finding one. Also, it needs a new male socket on the electronics box. No one sells the female plug that fits this socket/been told it is no longer made and cat be found anywhere. Can I just replace it with a modern, three prong one. Thanks for your help.
J. Thad
Attached are three photos:
One shows the transistor in the electrical box that needs to be replaced.
One shows the new female plug that requires a male socket to be replace the existing socket.
One shows the original socket currently in the electrical box underneath the motor.
any suggestions to where I can obtain the parts would be greatly appreciated.
J. Thad
Attached Thumbnails d0138e4f-8fc0-46e3-a8b9-843a5a6044b6.jpeg   a3527dbe-9ba2-475e-9eec-efe692291076.jpeg   6ed7fb2e-3b19-43df-8217-e227c9264cb8.jpeg  
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Old 03-15-2022, 06:28 AM
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Since no one else is jumping on this I will offer just a bit more. You have shown a picture of a transformer. It reduces your voltage to 12 volts for the lamp. he is a pic of one, but not for your Necchi. Transformer Unit, Janome #751577002 : Sewing Parts Online

if you are on FB I would recommend you look up the Necchi FB groups. One is general stuff, an offshoot is the more technical stuff. I have no idea about your plug ins. Sorry.

Good luck.
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Old 03-15-2022, 07:33 AM
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There is also a Necchi group on groups.io.

(Other than that, I'm of no help.)

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Old 03-15-2022, 02:27 PM
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I just finished cleaning up one of these, I removed the transformer and the 12v light. I also removed the light switch on the lower motor case along with the fast/slow switch as well. Once I know if this is going in a table or a case I will direct wire the motor and the foot control on the inside of the lower motor case, which is made of plastic, running the cords either through the hole for the removed switch or up through the bottom. I had a back up light from another machine.

Unless you want to keep it original, you might consider a similar work around.
Attached Thumbnails 20220301_125128.jpg  
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Old 03-15-2022, 03:15 PM
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Also, in your picture on the the far right of the motor case with the male plug, the inside half of an old receptacle is broken off and still in place, you should be able to pull it out revealing hopefully intact prongs. I can't help you on the transformer, I looked at mine but it is in terrible shape and I cut the wires too short off it.
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