The speed control is brutally simple: a carbon-pile rheostat in series with the 120 VAC 1 A sewing machine motor.
Kenmore Sewing Machine Feet and Adapters version 2
Kenmore Sewing Machine Foot Controls for sale
IF OLD SEWING PEDALS COULD TALK PART 4: Kenmore's Foot Controllers Were a Sears Servicer's Dream!!
All About the Sewing Machine - Seamingly Badass
Kenmore Sewing Machine Foot Pedal
30 Easy Flower Crafts For Kids Adults PureWow, 40% OFF
30 Easy Flower Crafts For Kids Adults PureWow, 40% OFF
Foot controls, Kenmore plug repair, and rewiring from 220 to 120 volts on vintage sewing machines
IF OLD SEWING PEDALS COULD TALK PART 4: Kenmore's Foot Controllers Were a Sears Servicer's Dream!!
Kenmore Sewing Machine Foot Controls for sale
30 Easy Flower Crafts For Kids Adults PureWow, 40% OFF
Disassembly of Kenmore Sewing Machine Foot Pedals
Foot controls, Kenmore plug repair, and rewiring from 220 to 120 volts on vintage sewing machines