what type of inductor

[MEGA-amp]

Progress is slow going on my Aleph 2. I looked around but, i'm looking for a definitive answer about what type of inductor to use.

I've been looking at 12 ga. air core 2.2mH inductors. What are the advantages/disadvantages of using this type of inductor vs. the foil type inductor? From what i've read foil is better than regular wire wound inductor.

Thanks in advance

John

[MEGA-amp]

Copper coil inductor vs. round core inductor



I've seen people using the foil type, but is it preferred soundwise overall, compared to the wirewound aircore.


Thanks
John

[Brian Donaldson]

The only real concern is to keek the resistance down so the thing doesn't melt the insulation and short. I don't see how the conductor's shape (wire or foil) could make a difference. It's only filtering 120 hz ripple and is decoupled from the amp by the second bank of caps

[Panelhead]

Originally posted by MEGA-amp
Progress is slow going on my Aleph 2. I looked around but, i'm looking for a definitive answer about what type of inductor to use.

I've been looking at 12 ga. air core 2.2mH inductors. What are the advantages/disadvantages of using this type of inductor vs. the foil type inductor? From what i've read foil is better than regular wire wound inductor.

Thanks in advance

John

For power supply filtering, I have been using cheap ferrite e-core chokes. The advantage is size and cost.
For something like a Aleph 2, an air core choke of 2.2 mH and a current capacity of 10 amps or so is very large.
My amps are much lower current than a 2, but a 2.7 mH, 6 amp choke was 5.95 at the local emporium. It would fit in your hand, 2 -3 pounds.

George

[GRollins]

My two cents worth is that the foil inductors would be wasted. Use regular wire inductors. Save the foil inductors for your speakers.

Grey

[MEGA-amp]

Why is it always a penny for your thoughts, but you put your two cents in, somebodys making a penny here.


---steven wright


Thanks for the info
JH

[Magura]

2.2mH air core 600W inductors are actually not that big. I made a few a while ago. For lots of power theyre un-beatable.

Magura

[GRollins]

There's a sign tacked on the wall here at work that says,"Every minute you're mad, you've lost a second of happiness."
I want to know what happened to the other 59 seconds.

Grey

[Magura]

Originally posted by MEGA-amp
Why is it always a penny for your thoughts, but you put your two cents in, somebodys making a penny here.


---steven wright


Thanks for the info
JH

2 cents is almost the same as a penny.....you see the reason it turnes out to be 2 cents and not 1.8 cent, is the exchange fee of the bank.

Magura

[moe29]

These are the inductors i used in my Aleph 2. They're 2mH.
I used to get them from MCM... but they quit stocking them, last time i looked.