The present manuscripts discusses the development of a forty stage, 22 kV solid-state pulser based on Linear Transformer Driver (LTD) topology employing 240 MOSFET switches operating at rep-rate of 1 kHz. A transformer based triggering scheme is implemented which enables the switches to operate at a jitter of < 5 ns. Each stage drives ~ 220A peak pulsed current and the output voltage of forty such stages are inductively added to generate 22 kV across 100W resistive load, having a rise time of ~ 20 ns. The paper presents the developmental steps, highlighting the temporal jitter characteristics ~ 5 ns (peak to peak jitter measured at output voltage at load end) demonstrated by the system.