Hi,

I own a SX-28A, which is similar to the 28. A fine looking old radio,
somewhat difficult to work on. Stable, but lacking in sens and
selectivity when compared to the other radios you mentioned. Remember
the SX28 and 28A were designed in the 30s.

I also own both an R390 and an R390A. If you want the ultimate in AM
performance, either of these beauties will do it for you. I perfer
the R390 because it tunes more smoothly and overall has a smoother
feel. On the air performance is similar in both, and of course both
have the famous mechanical dial.

I also own a SP-600 JX-17. Very fun radio, smooth tuning, but crowded
dial and not easy to interpolate the received frequency. Fine for
tuning the SW broadcast bands, not so fine for Ham bands.

Regards,

Bob

On 25 Oct 2003 06:33:19 -0700, (David Toepfer)
wrote:

In the future I would like to set up an AM station for the low bands
(just 160m, 80m, and 40m) and am doing some research as to what
equipment I should be looking for. I am looking to choose a good
quality Receiver and Transmitter to start with and stay with. I don't
have the space for a BoatAnchor collention right now, but would like
to set myself up with a station with nice hi-quality audio for AM
work. I am not looking to DX with them or contest with them. Just
looking to do some high quality domestic AM work.

To start I am looking for a good receiver, preferably with really good
fidelity for AM. From what I have been reading everywhere it seems
that the

Hallicrafters SX-28

is the receiver to have if you are looking for good sound. People say
it has good frequency stability. I was wondering how you would
compare it on these points as well as selectivity and sensitivity with
these other receivers which seem to be quite fine as well:

Collins R-390
Collins 51J-4
Collins 75A-4

Hammarlund SP-600

Or does anyone have any others to suggest as well?

Also, I am completely in the dark as far as transmitters go for the
same kind of work. I am likewise looking for good high fidelity witr
good frequency stability AM. But I don't know where to go (or is
building your own rack the best way to go for this kind of work?)

The transmitter I have come across for hi-fidelity AM work seems to be
the

Johnson Ranger and
Johnson Ranger II (not sure what is the difference between them)

Or is the Valiant or Viking better?
But I am sure there are others out there as well.

Any help with suggesting a good kW linear that would preserve a
hi-fidelity signal would be appreciated as well.

Are there any other things I should be considering as well that I have
missed asking because of my relative newness to this area?

This is a long term project and I am just in the information gathering
phases right now.

Any help would be appreciated.

73

dt
.