[Milsurplus] Seeking information on Collins 431B1 transmitter

[Brian/VE3UU]

I'm looking for technical information and particularly a picture of this
unit. They were used on the DEWLine in the Emergency Radio Rooms and I'd
like to add the information to the DEWLine web site that I maintain. Thanks.
(http://lswilson.dewlineadventures.com/HamsOnTheLine.html).

Brian J.
www.VE3UU.com