[JN] Tiny Torrid Whindage!

bear bear at bearlabsusa.com
Thu Feb 4 15:52:06 CST 2021


Yeah they make 'em so they can wind down to SMT size!!

I've got one that will do down to ~1/2" , which is some large fraction 
of what
you call a Centimeter?

                      _-_-bear

> Den 03-02-2021 kl. 16:42 skrev Hans Hedal via Sound:
>> Den 03-02-2021 kl. 01:13 skrev Christian Rintelen via Sound:
>>
>>
>> (just in case you?re tired of counting turns: here?s a DIY toroid
>> winder with arduino control
>> <https://electricdiylab.com/diy-arduiuno-based-toroid-coil-winding-machine/  
>> <https://electricdiylab.com/diy-arduiuno-based-toroid-coil-winding-machine/>>
>>
>> ?
>> _ _ _
>> aka christian rintelen
>> It is hard to imagine a mini version of this winding machine rotating
>> a spool of copper wire through a tiny ring core.
>> For instance I am using a pair of small potted toroidal 1:1 line level
>> isolation transformers in my stereo to mono mixer:
>>
>>
>>
>> They are small in size 21mm x 32mm x 32m <
>> https://www.lehle-components.com/media/pdf/25/f6/9f/LEHLE-TRANSFORMER-MZ-Datasheet.pdf  
>> Perhaps even smaller toroids are made.
>>
>> Could it really be possible to scale down the described type of
>> winding machines to make such small toroid transformers?
>>
>> Hans

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