There is a manual in Adobe pdf format at:
http://bama.edebris.com/manuals/knight/r55/
It may contain what you need. Caution, it is approximately 21MB
Radiodoc
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:Gentlemen,
:I am looking for any one that might have copies of the pictorial diagrams for the subject radio. I have the assembly manual (copied) but someone inadvertently left out the photos / diagrams. Any help in this matter would be extremely appreciated.