On Sat, 22 May 2004 00:46:39 +0000 (UTC), in
rec.radio.amateur.homebrew you wrote:


"Richard" wrote in message
...
Apart from Ham radio, I like DXing on many other bands, including LF and
MW.

I am looking for a circuit diagam for a MW pre selector, anything would be
of interest, bit if someohw has one of thoese super dooper ones that can
focus donw to a few khz that wold be even better, (like the palomar MW pre
selector)


Download in a few seconds program SELECT_1 from website below and run
immediately. Also includes tuning coil design. Ideal for MW.
.......

well, it is so nice to inform about my own site, although it has
nothing to do with the request, neither does your reply

A quick calculation for a tuned circuit gave the results of a single
circuitfilter covering 500-1793kHz. Not quite as sharp as requested,
the coil turn calculation might have been right, but what does it
help?

sri, OM

73
Jan-Martin

http://www.noding.com/la8ak/12345/n13.htm