pyjaman
Well-known member
Hello, everybody.
I have this ribbon mics project on the bench for months now. basically, the motor is made like this:
gap/ribbon lenght: 50mm
gap width: 5mm
gap depth: 5mm
no pole pieces, two "N50" grade 5x10x50mm neo magnets sit directly on each side of the gap.
ribbon material is 2,5 micrometer Al.
So, in order to keep this project as DIY as possible and to save money (!) I'm looking for a way to wind my own transformers. In my quest for a suitable core, I found this:
http://www.spulen.com/shop/product_info.php?products_id=140
datasheet here :
http://www.toshiba-tmat.co.jp/eng/product/pdf/e_amo006.pdf
Basically, my idea was to experiment with two 9 or 10 turns of 0,9mm dia primaries paralleled in a humbucking arrangement and two 130-150 turns of 0,1 to 0,3mm dia secondaries in serie.
Unfortunatelly, My maths skills, english and background theory are too weak to allow me to fully understand everything about it.
I may be totally on the wrong way, but I know that some people here are very good at ribbon transformer theory and experimentation (Marik?) and Magnetics (CJ?).
So any inputs about the suitability of these cores for my project, any suggestion about the winding arrangement, or any other suggestion for other core sourcing WILL BE HIGHLY WELCOME.
Thanks in advance for your help!!!
Laurent.
I have this ribbon mics project on the bench for months now. basically, the motor is made like this:
gap/ribbon lenght: 50mm
gap width: 5mm
gap depth: 5mm
no pole pieces, two "N50" grade 5x10x50mm neo magnets sit directly on each side of the gap.
ribbon material is 2,5 micrometer Al.
So, in order to keep this project as DIY as possible and to save money (!) I'm looking for a way to wind my own transformers. In my quest for a suitable core, I found this:
http://www.spulen.com/shop/product_info.php?products_id=140
datasheet here :
http://www.toshiba-tmat.co.jp/eng/product/pdf/e_amo006.pdf
Basically, my idea was to experiment with two 9 or 10 turns of 0,9mm dia primaries paralleled in a humbucking arrangement and two 130-150 turns of 0,1 to 0,3mm dia secondaries in serie.
Unfortunatelly, My maths skills, english and background theory are too weak to allow me to fully understand everything about it.
I may be totally on the wrong way, but I know that some people here are very good at ribbon transformer theory and experimentation (Marik?) and Magnetics (CJ?).
So any inputs about the suitability of these cores for my project, any suggestion about the winding arrangement, or any other suggestion for other core sourcing WILL BE HIGHLY WELCOME.
Thanks in advance for your help!!!
Laurent.