I have noticed that some of the eby sellers of asian 'big output transformer cans' are now specifying the material used - for 'deep drawn' cans - as being 'iron'.
I'm pretty sure that in the past at least for some, they had pretty minimal of such, being more alu alloys and so on. Less em shielding than aesthetics .... [ ]
I have a mind to try one of these newly specified types out - they are available in a range of sizes and prices - I think they could be interesting for shielding and / or visual, mechanical mounting purposes [for those franken-winding diy transformer jobs]
I suppose as usual, actual iron amount [varies] and one needs to check it all out for efficacious-ness.
Still, worth a peek .. I'm thinking an 'all asia combo' eby -style ... ie an output transformer, single-ended 300b type .. amorphous core with a copper frame .. in a deep drawn can ... all covered in gloop.
For a reasonable price 8)
I'm pretty sure that in the past at least for some, they had pretty minimal of such, being more alu alloys and so on. Less em shielding than aesthetics .... [ ]
I have a mind to try one of these newly specified types out - they are available in a range of sizes and prices - I think they could be interesting for shielding and / or visual, mechanical mounting purposes [for those franken-winding diy transformer jobs]
I suppose as usual, actual iron amount [varies] and one needs to check it all out for efficacious-ness.
Still, worth a peek .. I'm thinking an 'all asia combo' eby -style ... ie an output transformer, single-ended 300b type .. amorphous core with a copper frame .. in a deep drawn can ... all covered in gloop.
For a reasonable price 8)