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Heathkit IM-105 Schematic & Cal Info Needed

I am looking for the schematic and calibration instructions for my Weston 660 / Heathkit IM-105 analog multimeter so I can repair it. The Weston 660 is basically the same as the Heathkit IM-105. If this can be scanned or you copied please let me know. Any help would be greatly appreciated.
 
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