Sujet : Re: two drums
De : klauskvik (at) *nospam* hotmail.com (Klaus Kragelund)
Groupes : sci.electronics.designDate : 12. Mar 2025, 11:25:30
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vqrnes$2i8m9$1@dont-email.me>
References : 1
User-Agent : Mozilla Thunderbird
On 12-03-2025 03:35, john larkin wrote:
https://www.dropbox.com/scl/fo/qpfhkvbfig7elysx78lq3/ALGqgMaRq1tx8aIiN3p1TfM?rlkey=36bcqfdb9di22ko48j89vocut&dl=0
If I put two of these drum core inductors close together, and get the
phasing right, I get an extra 5 mH for free, without any more ESR. And
external mag fields drop too, I think.
Looks like they are cheak unshielded types. But anyway, nice to get more indtance for free.
When you put them in series, the SRF increases a little bit also.
I would suggest you measure with a Bode 100 or equivalent, that crappy LCR does not give you much info.
two drums
Re: two drums
