Inductors made for crossover in an amp?
 

sorry for asking an elementary question but i kinda can`t find the answers.

Can inductors made for speaker crossovers be used for and amp`s powersupply?

i`m lookin at the ferrite core inductors on sale in madisound. at 19awg, how much current can i pass through it before it saturates?

Thank You!

Many amps but low inductance.

take for instance the 14.5H 19awg one going for ~$6.

is it any use in an amp ? i`m hopping to use in an KT88 SE monoblocks drawing 100ma Iq. i`m thinking of dumping 2 in series to get 30H which might be sufficient.

is it okaY?

Those are actually 14.5 millihenrys - only really good for intended application. There are no cheap power inductors out there except military surplus. Try Surplus Sales of Nebraska.

John

oh dang... read da units wrongly...

thanks anyway!

Re: Inductors made for crossover in an amp?
 

Hello ,
No good , I'm afraid ! Too low in value and only rated for AC . I suppose you could always use cheap surplus SE output transformers and leave the secondary flapping . May also make so-so plate chokes

cheers :)

316a

Well, you could use them with say 20mF (= 20,000uF), but that's only useful for a good number of amperes, at low voltage (read: SS).

However, they also represent greater loss due to having no core, or at least a ferrite one. A good power choke would use a laminated iron core, allowing more filtering for less size and loss. Though any inductance is better than the rampant CRC filters I saw on last look through the SS forum... :eek:

Tim

haha... i`m planning 30uf->30H->40uf of MKP caps for my powersupply....

Just curious, why can't I find any details on winding a diy choke? I mean, we have the magnet wires, the E-I cores, covers and legs, the only thing missing is the number of turns and what size to use. :xeye:

And I also have a manual rewinding machine.

Just a thought. :D

Anyone? :smash: :D