SST-02 The softstart for toroidal transformers SST-02 is replaced by SST03 . The difference is room for bigger C1 andC2 caps, the black ones in the picture. The pcb is slightly larger.

SST-01 The softstart for toroidal transformers Picture of the pcb. The pcb is doublesided with plated through holes and the copper is extra thick. WARNING - CAUTION As you can see at the picture the p...

SSR-04 The Sjöström Super Regulator Power Supply Click on the picture to get a larger view. Some background can be found in my SSR-01 project . This design is based on my SSR-01 project and the goal w...