We keep getting emails along the lines of "What's wrong with my 201 that I have to have the top tension on 9 to get a reliable stitch?", so this is an attempt to explain a bit about how this type of top tension adjuster works, and why the number you have it set on…
Nice original upper thread tension assembly. -Unit is complete with release rod. -Fits Singer model 306 & 319.
Vintage Original Singer Thread Tension Assembly Fits Model 306, 319
Restoration of a 1946 Vintage Singer Model 201-2 Sewing Machine
Early Singer 15 115 Sewing Machine Unnumbered Upper Thread Tension
My Sewing Machine Obsession: Singer 201 tension issues continued
201K Singer Sewing Machine Upper Thread Tension Dial Assembly With
201 Upper Thread Tension Dial
Singer 201K top tension – part two
A Simple (But in Depth) Comparison – The Difference's Between a
Singer 201K top tension – part one
SINGER 201 THREADING THE MACHINE THREADING THE BOBBIN CASE
How To Adjust the Bobbin Case Tension
Beginner's Guide to Sewing (Episode 5): Sewing Machine Troubleshooting & Maintenance
Singer 201K Vintage Sewing Machine Collection