Source for inductors

[alexg]

Any local source for inductors for passive crossover? Thanks.

[dannyb]

try to PM noctilux i remember his order from parts connection got mixed up & ended up getting 2 sets of inductors for his speakers, so he has an extra set of really good inductors

also inductors & transformers are made using the same basic principles so edrel sison might be able to make some for you

[tony]

alex, what values do you need? can you email me your circuit?, i am sure edrel can make them as well...

[qguy]

I had mine made by Anthony (diy_master)

[edrel sison]

alex i have been making these inductors for quite a long while now. buy the wires and ask my guy benjie to make one saturday.

[noctilux]

Any local source for inductors for passive crossover? Thanks.

I think I have spare copper foil inductors, 1.0 mh and 0.15mh, 2 pieces each. Danny's correct, they sent me twice the amount I needed. The brand is "Solo" which I think has closed down a few years ago. I though of using them for another project but never materialized. Copper foil has lower DC resistance due to the bigger cross section. My experience is it greatly improved dynamics as well as higher headroom for clipping. I thought that it was the driver's limitation then but apparently the bottleneck was the inductor!

[Noel_14]

I have on stock Mundorf Copper Foil Coil 0.18mH.

Cheers

[arnoldc]

I bought a 3-way x-over sa Guadalupe for around 350/pair. Habol ko lang yung inductor , I changed the caps and use OTA wires. I'm fine with it.

[qguy]

I bought a 3-way x-over sa Guadalupe for around 350/pair. Habol ko lang yung inductor , I changed the caps and use OTA wires. I'm fine with it.

how did you find out the value of the inductor ?

[arnoldc]

May label sa mga LP/HP cut-off. That's enough for me.

[qguy]

May label sa mga LP/HP cut-off. That's enough for me.

Ahh I see thanks...

[Jon Agner]

I bought a 3-way x-over sa Guadalupe for around 350/pair. Habol ko lang yung inductor , I changed the caps and use OTA wires. I'm fine with it.

how did you find out the value of the inductor ?

Dai-ichi crossovers have an indication on parts rating/value, as well as the cut off frequencies.

[alexg]

alex i have been making these inductors for quite a long while now. buy the wires and ask my guy benjie to make one saturday.

I think I need 2mH, but I need very low resistance.

[edrel sison]

use AWG14. should be ok

[arnoldc]

Make your own inductor

Wala lang akong sipag lately...

[brady]

i often see coils made out of copper tubes --- not wires --- in RF tuning circuits. why is that?

[tony]

"skin" effect, at very ,very high frequencies, current travels only at the surface of the conductor, making the inside useless....therefore using a hollow copper tubes is resorted to in this cases, we are talking 100's of megaherts here......

[brady]

i see ... never saw them in low freq amps. But very often in RF. especially in those old tube RF transmitters. I think the reason they'd use "sheets" instead of "wires" on the plate is also probably due to this skin effect phenom.

[tony]

i see ... never saw them in low freq amps. But very often in RF. especially in those old tube RF transmitters. I think the reason they'd use "sheets" instead of "wires" on the plate is also probably due to this skin effect phenom.

that is why i cringe when this term comes up in speaker cable discussions.....