On Mar 17, 10:12�pm, Robert casey wrote:
Looking thru a friend's Feb 2009 QST, saw an article on the W6TC "HBR"
double conversion homebrew radio. �Which my father may have built a copy
of. �I no longer have that radio, but looking at the pictures of teh sets
in the QST article, it looks very similar to what my father built. �I do
remember that he used a 1.8MHz crystal for what might have been the 1st IF
to 2nd IF conversion mixer. �I also remember, in the mid 60's (I was in
grammar school) getting this crystal for my father as an Xmas gift (well, I
gave him money that he used to order the crystal, I would not have been old
enough to know how to mail order stuff myself yet). �

Anyway, did the HBR use a crystal of a frequency like this as a conversion
local osc mixer? �Or maybe the crystal wasn't in an oscillator circuit, but
maybe as a bandpass filter? �

Bob, try www.qsl.net/k5bcq/HBR/hbr.html for a rather complete
collection of
Home Brew Receiver photos, schematics, details, hints&kinks, etc.,
which is Kees Talen's website. It isn't as squashed together as QST
articles (which don't cover all the HBR versions) nor does it have the
extra 450 KB warning page present with QST article downloads.

73, Len AF6AY