On the bench is a R-388 with a defective Break-in switch mounted in place of 
the speaker jack on the front panel.  Turns out that the switch was not 
connected to the wiring harness.  A check of the various R-388 manuals on hand 
does not show how this switch was connected.  Change 2 of TM 11-854 mentions 
the Break-in switch but there is no other information.
Does anyone have a link to a schematic that shows this Break-in 
switch?Regards,Jim
Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy
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