Could the fabric strip be a dipping thread? Electricians in the motor rewind shop used to dip the windings in Varnish, and used shoestrings or paracord - strong, light, and with just a slight flex they could break all of the dried varnish off it for reuse.
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Brian
USN RET (Avionics / Cal)
CET- Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"
When fuses go to work, they quit!
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