Dear Owen: Always good to receive your insight.

Were I to deal with Ebay, I would have a dedicated computer and ISP just for
that purpose. I am much too much a belt and suspenders person to wish to
avail myself of their "bargains." I leave that to those who are younger.
You have reinforced my expectation that from VK land it simply might be a
necessity to deal with Ebay and to measure materials received from any
distant source.

As an extension, a new field proposed at our university is that of a
specialized engineer who is able to make the importation of parts from all
over the world work. This has become a real field. It is much worse than
the three metric systems that existed at the beginning of WW2 (American,
Canadian, and English) such that bolts might only engage a few threads
before seizing.

Your skepticism about type 31 causes me to revisit my assumptions.

As always, 73 Mac N8TT

--
J. McLaughlin; Michigan, USA
Home:
"Owen Duffy" wrote in message
...
"J. Mc Laughlin" wrote in
:

Dear Ian (also my father's name): Thank you for your note. It is a
mystery to me why those who sell via the Internet do not work hard at
keeping their sites up-to-date. 73, Mac N8TT

Mac, If you have your heart set on #31 mix, this option isn't a good
one... but if you can use #73 or #43, you will regularly see sleeves in
various sizes and materials on Ebay. Many have Fair-rite numbers so you
can check to see if they suit.

Some advertisers state that the cores are Fair-rite cores, if they know
that, they should know the part numbers though they don't always state
them in the descriptions.

I have bought ferrites from one of the suppliers, the goods seem to
comply with the part number descriptions (dimensions, mu) and their
service to Australia was quick and cheap.

In this part of the world, product from Asia is available economically...
but we have to characterise them and long term product availability is a
bit of an issue.

Owen