Bill:
I generally use the HQ-150 above 5 MHz and I haven't had any problems with
images. The 150 circuit is basically the same as the previous single
conversion 'Hammers' and, while a bit drifty for the first 10 minutes or so,
works very well. The receiver can usually hear anything my modern tabletops
can. Selectivity, however, is another issue. Those old xtal filters had
very poor shape factors and the skirt selectivity suffers.

--
Brian Denley
http://home.comcast.net/~b.denley/index.html

"William Warren" wrote in message
news:Qyi4c.15801$Gm5.46188@attbi_s04...

Thanks to all those who replied: the links have answered my questions and
will provide a good reference source.

Brian, since the HQ-150 is single-conversion, how well does it handle
image-rejection? Is the Q-multiplier "reject" feature useful there?

TIA.

Bill