Shift registers containing transistors in each stage

After a discussion of the logical requirements several possible and practical types of shift registers are considered, e.g. shift registers containing blocking oscillators and square-loop ferrite cores as memory elements, shift registers containing blocking oscillators and short-time memory elements, and shift registers containing hook flip-flops and short-time memory elements. The maximum trigger frequencies of the types discussed are 200¿300 kc/s, and usually two stages per digit are required. Possibilities of achieving one stage per digit will be considered.