On Mon, 21 Feb 2005 09:46:22 -0500, "William M. Bickley"
wrote:

Does anyone know of a source for a switch which accepts two incoming
PL-259's (A/B) and spits out either A/B or B/A, depending on switch setting.
The object is to switch the feedpoints of a rhombic antenna from one end to
the other. The two "incoming" lines to the switch are from either end of
the rhombic. The two outgoing (from the switch) go to a dummy load and the
tuner/transceiver.

What you are looking for is called a "transfer switch". You may want
to look for a surplus one. Transco made such a thing, both as relays
and as motor-driven switches.

None of these will be found with SO-239's tho.