DX Engineering has nicely color coded ferrite - #31 1.4" OD.
https://www.dxengineering.com/parts/dxe-tc31-24-4
You never have to think about what mix is "my ferrite" when you get it from
DX Engineering - it's color coded
https://static.dxengineering.com/global/images/chartsguides/d/dxe-acdcgen1-r
fi_hc.pdf
Yes, I work for DX Engineering and I am thrilled that DXE has changed the
way you purchase ferrite - with color codes on the cores.
73
Tim K3LR
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Dave
Sublette
Sent: Monday, October 08, 2018 10:52 PM
To: kj6y--- via TowerTalk
Subject: [TowerTalk] Ferrite cores
Well I've done it again -- I lost the info on where to order the 1.5 inch
type 31 toroids to use when building chokes to feed antennas. I have
googled all evening, looked at Mouser, Amidon, etc... and can't find them,
What really irritates me is I bought them and built three chokes not three
months ago and can't remember where i got them from. :-( Old age is
agravating.
Who can tell me the good supplier for type 31 1.5 inch diameter cores to
wrap RG142 around?
Thanks,
Dave, K4TO
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