2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/21396We introduce a new mesoscopic transistor, which consists of a superconducting island connected to superconducting and normal electrodes via two mesoscopic tunnel junctions. Furthermore, the island is being charged through a resistor. The interplay between Bloch oscillations, single-electron effects and ohmic current leads to a device having a high current gain. The operation and characteristics of the transistor are analyzed with a numerical model.3 pages, 5 picturesMesoscale and Nanoscale Physicstext