Group Buy On E Cores?, 800 of them

ebay link:

http://cgi.ebay.com/APPROX-800-FERRITE-COR...=item483b867a7a

there's two more of the same posted. i'm pretty confident no one will bid on them.

I was thinking about buying them, anybody want some of them?

i think its dmr 30 or 40, pdf here http://www.chinadmegc.com/chinadmegc/engli...area/gonglv.pdf

Not sure about the comment 'many are broken.... many more may break in transport'.

Besides, these cores are no good without the hardware to hold them together and/or wind cores....

well, I don't need the bobbins, and they don't make them for stacking 5 cores deep anyway.

I'm in.

KE: cereal box cardboard and white glue.

Ok Tim, I see where you're going

Persoanlly I have all the cores I'll ever need from all the old PC power supplies that I've dismantled over the years.

Decent power handling capacities too.

yeah, just look in the nearest dumpster. oh, and wash them out before you start unscrewing the case..
not here though, that old dell 15" crt is worth 5$ on craigslist.

I'd be leery of that offer. First is the 42lb shipping weight, & second is the seller's low feedback rating. 98.5% with the number of sales that guy has is terrible & indicates a lot of problems.

I also have more cores than I need from salvage, & they come with bobbins & sometimes even wire.

I agree.

The shipping price is quite insane too, almost 400 dollars.

But the group purchase idea is good - I'd want a few of them too, but the shipping is ludicrous, and far more than I'd ever be willing to pay. Heh..my 16 new component shelves costs less half that, and fills an entire wall.

*Edit*

Someone has made a bid for it, 30 minutes left, did you bid on it?

shipping is 22$ from florida to here..

if he gives me a 40 pound box of rape i'll drive down there myself...

they should be here in a few days.

i'm sure the fact that the seller's checkout website only works with IE 32 bit isn't helping his feed back percentage out any..

Two trays arrived the other day. About a quarter were chipped in some way (mostly thin flakes around the edges, nothing to worry about), and three broke. No big deal, I have a few hundred more

If you find a crate of formers, let me know...

I actually have a few sets, removed from equipment, which fit these... not sure which former is best in Ferroxcube/Epcos' product line though... and they'll be about $5 each, new.

Tim

i sent you two trays of the good ones, none were broken, or chipped for that matter. (i figured the packaging would contain them, (you should have seen the box they came in).. oh well...)

Whatever material this stuff its, a few chips isn't going to affect it anyway. it is certainly not the high permeability stuff you would use for an emi filter, or pulse transformer.

Yeah, tray was a little dented on that side -- I can't blame them for breaking, someone must've dropped it pretty good. A row of 13 behind them isn't very forgiving, it's kind of surprising these things survive shipment as well as they do.

Yeah, datasheet said permeability 5000 or something like that. Could still be used for filter/pulse, but you'll need more turns. Should be great power transformer and filter material for "medium" frequencies (up to 200kHz or so, typical switching stuff).

Tim