For Aussie DIYer's

[Moondog55]

I am getting a quote from Dyne Industries on 10mH laminate core inductors, there is a large price break if more than 50 inductors are ordered.
I have not received the quote as yet but are there any members here in Melbourne ( and other parts ) who need / want some LARGE value inductors who would like to join a group buy??
These will be wound on "E" cores with 1.6mm wire for DCR's in the order of 0.5 Ohms.
Regards Ted

[Cloth Ears]

Ted,

What sort of price are you looking at, and when were you planning the buy?

[Moondog55]

Price for singles will be about $60- each, I haven't yet heard back but as soon as I know I will post prices, they were going to give me prices on a purchase of 20 then 50, obviously the bigger the buy the cheaper the price. I need 4 of this size for current projects, and it's a common need for me, I was contemplating ordering 8 or 10 , but no break for such a small order.
Regards Ted

[Brett]

I'd probably be interested in 4 depending upon price and power handling.

[Moondog55]

OK Brett,
Lets see how much interest we get, Jon T didn't say how many he needed

[otto88]

What Hz would 10 mH do?

[Moondog55]

F = XL / 2Pi L ( in Henries )
L = inductance
F = frequency
XL = nominal load in Ohms

First order 10 mH = 125 Hz at 8 Ohms, 62.5 at 4 ohms, I'm aiming nominal 2nd order 4R at 125 or baffle step on .5 woofer.

10 mH seems to me like a reasonable compromise.
I'd like to cross a little lower but keeping costs and DCR down this should work.

[otto88]

Thanks m55, I thought it a pretty low Hz,
I’m afraid that’s too low Hz for me

Good luck

[Moondog55]

Perhaps on 4R but if using 8Ohms at 250 perfect for wise band midranges like my Vifa P13's

[Cloth Ears]

Originally posted by Moondog55
OK Brett,
Lets see how much interest we get, Jon T didn't say how many he needed

Sorry Ted,

I've been a bit crook. I was only looking for 2, and I've currently got some that will do the job for the present. So I think I'll pass on your group buy at present.

I was going to upgrade later on to some 8.2 air core things (0.5 DCR - $85ea) - but I'll have to wait until I can afford the postage as they're over 3kg each.