Four basic devices are required for an integrator of differential equations. These are (1) integrating units themselves, (2) coupling devices for interlocking the various integrators and multipliers, (3) multiplier units, (4) generators of functional coefficients entering into differential equations. These devices and their applications to various types of problems are given. Results of an entirely completed machine are not available, but preliminary results show the device to be good to half a percent and potentially in some cases to nearly a tenth of a percent. The electric coupling used renders the machine very free from mechanical difficulties and also reduces the cost enormously. A machine capable of attacking many theoretical problems might cost as little as $5000.