The Husqvarna 6690 dates back to the 1980s and is one of the first models of Husqvarna sewing machines where much of the function is controlled by a microprocessor, a novelty at the time being the ability to connect letters. It is a multifunctional sewing machine with a lot of options when it comes to various types of stitches, from classic, decorative to stretch stitches. At first glance, it could be said that it is a complicated device, but it is not so, the handling is extremely simple…