Most of the equipment
in this collection is Winged Emblem. This equipment was manufactured
under several logos - Collins Winged Emblem, Collins
Round Emblem and Rockwell Round Emblem. Not all types of
equipment were manufactured under the three logos. For example,
you will not find a Round Rockwell emblem KWM-1. Obviously
a consideration of value is how rare the unit is. The round
logos are more rare. Round logos will have more recent Engineering
Change Notice (ECN's) installed (The last to be manufactured).
Almost every product had recommended "Service Bulletins" published.
It is nice to know that all updates have been made to an acquired
piece of equipment. One way to assure that the "service bulletins"
have been installed is to send the S-Line equipment to Dennis
Brothers and allow him to do his magic. Another consideration
is condition. Obviously you can have a Winged Emblem Unit that
is more valuable than a beat up Round Emblem unit. There is
much discussion of this in the reflector archives. See the links
page. I have placed equipment other that S-Line in this
area (KWM-380, KWM-1, etc). to keep the site from being too