Foot Controller, Electronic, Singer 301 & 400 Series
It seems that vintage Singer machine enthusiasts either love or hate their original "button" type foot controller. Besides being awkward and uncomfortable to use, the carbon disk resistance system inside them which provides the speed control by design gets hot with use, and is prone to breakage and mis-adjustment. When plugged in there is always power going to to the foot controller since there is no off switch (except for just the light) on the vintage Singers. This can make for a dangerous situation.
This modern replacement foot controller is much more comfortable and offers better speed control than the Singer button type controller. The modern solid-state design offers better ergonomics, lighter weight, better speed control, and is safer.
The 2-prong connector fits the lower 2-prong socket on the Singer 301, 401, 403, and 404.
NOTE: If your 301 has the two-cord system with the foot controller cord and the power cord plugging in separately it was originally sold by Singer in a cabinet. This system allowed the foot controller cord to remain under the cabinet top work surface and out of the way. If you no longer use your machine in a cabinet but instead on a table top, the foot controller cord has to make a very sharp bend at the table top, resulting in strain to the connector and socket on the machine.
These 301's will operate perfectly with the integrated single-connector cord set which is used on the Singer Featherweights and other models. If you wish to order that solution to eliminate the sharp bed in your controller cord you can order it HERE