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E.F. Johnson Messenger 223 User Manual and Schem.


Thank you for posting the schematics and manual. I have one of those in my garage, I've been meaning to piddle with. I'm out of excuses now! Time to get tinkerin' Thanks again
 
So, can someone please help my vintage brain? I've tried to open the manual which is a compilation of .tif files. I can't get them to open. They've unzipped, but I can't get them to open. Anyone have any ideas what I'm doing wrong? Thank you.
 
Thank you, thank you, thank you! You made my day. Got mine yesterday at an estate sale. Fabulous condition and included the desk microphone. All the tubes are original Johnson branded tubes. Tested them and only two were bad. One shorted and one just weak Can't wait to get my replacements... will cross my fingers and power it up.
 

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