Bob wrote in
:

You might shoot an email to tech at C.Crane Co. -- a lot of their
branded radios are actually customized Sangeans...they might be able
to tell you the most effective antenna and/or the impedance of the
thing.

bob
k5qwg


I got a reply, but Sangean didn't tell them that either. But he says what
many here do, that it doesn't matter that much, and that 50 ohm line should
be ok.

One thing that keeps coming up is the need to make my own transformer for the
far end, whatever scheme I use, and in that context I often see mention of a
ferrite co Amidon FT-114-75 (AL about 3000, permeability u=5000, about
1.14 inch outside diameter as described on one page). Cheap but apparently
not easy to find in Britain. Does anyone know a current source of something
equivalent to it? It's beginning to look like I should get a small handful of
them. Another thing that might be better fetched locally is something like
the broadband preamp for LW to 30 MHz sold by Kiwa Electronics. If anyone
knows of one, please point me to it.. It's a Norton balanced input amp with
gain of around 10 dB. Even if I don't need it I'd like to know where to find
such things locally. I can likely build something based on the Dallas design
in a PDF I found but a good picture of the construction would help, as I
can't easily visualise the coil and former arrangements from the schematic.