I've got an unmodified Heathkit HW-100 with Power Supply and manual. I
would like to trade this rig for a Heathkit HW-9, a Ten Tec Argonaut
509, or another QRP rig of equal value.

The HW-100 is the sligthly older brother or the HW-101. The specs can
be found he http://www.qsl.net/kb7rgg/heath/products/ham/hw100.txt

This is a nice QRO rig for a new ham. As an apartment dweller, I am
interested QRP exclusively.

Jason
KI4GMX