hi group, looking for a service manual and/or schematic for an efco variostop motor/control unit, as fitted to singer 770 industrial machines. can find info on later models, but this one is from `70s (guesstimate) any help appreciated.
jonz
hi group, looking for a service manual and/or schematic for an efco variostop motor/control unit, as fitted to singer 770 industrial machines. can find info on later models, but this one is from `70s (guesstimate) any help appreciated.
jonz
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