The logic is actually done by crystal rectifiers, but the tubes do inversion. To make an and/or/invert gate requires a single triode or half of a 6J6A. A D flip flop requires three tubes or two ...

Flip-flops are extremely simple electronic circuits, forming the basis of clock circuits, memory circuits, buffers, and shift registers. Through his dilly-dallying with digital logic, [Jeffrey ...

Amongst these post-silicon ECOs conversion of the reset value of a flip-flop or register ... invert both the input data D as well as output Q for RESET to SET or vice-versa conversion, proposed ...