Singer 2639 Threading

Singer 2639 Threading. This is a drop in bobbin machine that takes plastic SA1565 or 15J bobbins. Regular Class 15 plastic bobbins DO NOT WORK in this machine even though they are sold as compatible. The bobbin needs to be curved like an SA156 or 15J to allow the thread to loop properly. Brother LS2400 https://www.youtube.com/playlist?list=PLfhGylRyTvD6xylRUO7QdDTj7fP2bPBYb Brother PE500 https://www.youtube.com/playlist?list=PLfhGylRyTvD6CoYDq08NRSr4UhFU7woNf Singer 401A https://www.youtube.com/playlist?list=PLfhGylRyTvD6a_QXBNGD4FGcwCo9DPTfQ Singer 15-91 https://www.youtube.com/playlist?list=PLfhGylRyTvD5ChXKOxQ1bmNFt8b0lyDdh Kenmore 385.12912 https://www.youtube.com/playlist?list=PLfhGylRyTvD5q4w_KR049JH0HZ9Mxuqrl Kenmore 148.210 https://youtube.com/playlist?list=PLfhGylRyTvD5YMOs9aIYV0TsCriR4OW7k Kenmore 148.12011 https://www.youtube.com/playlist?list=PLfhGylRyTvD6qwE1niebpUNvdE5AGsRNt Kenmore 148.12070 https://www.youtube.com/playlist?list=PLfhGylRyTvD46ZuXH5umUZOQ153UA2895 Kenmore 158.1318 https://www.youtube.com/playlist?list=PLfhGylRyTvD6cyHV7YHJtoz9DDL6wfeHf Viking 6360 https://www.youtube.com/playlist?list=PLfhGylRyTvD5kIljLvuEffFb8yI2FKl1e Necchi Lydia 3 https://www.youtube.com/playlist?list=PLfhGylRyTvD7D-fQDfGkcd_YjzWwThf95 White 600 https://www.youtube.com/playlist?list=PLfhGylRyTvD7U5h5KpdEQRuAzQ-Xw9dCC I have a discount link for the website EngineDIY that sells the engine models featured in other videos on my channel. For 10% off at Enginediy use coupon code giantbluecanary or https://www.enginediy.com/discount/giantbluecanary?ref=CLk6vdQP Email me [email protected] with questions, requests, or suggestions. You can also check out my Instagram @giantbluecanary if you'd like.