[GreenKeys] 28 Operational Theory

[Jim Plummer]

I came across some training material for the 28 series printer, TD and typing perforator. They are easy to read to follow the sequence of operation.  They came with the machines I had picked up.  These are copies of what I believe was printed by Teletype Corp.  If anyone is interested in the operational theory, I can scan these to a .pdf and make them available.  
 
de Jim - K8ARY
 
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