Pre-requisite to this paper is an understanding of the theory behind the Digital Amplitude Modulator presented previously. The previous paper shows by examples how digital amplitude modulation takes place in an array of cascaded 3 dB power combiners fed with RF drive gated power sources. Which drive sources are gated on or off is determined by the binary state of the digital word representing the modulation waveform. This paper carries the theory of the Digital Amplitude Modulator to the practical design of the much more useful Digital Linear Amplifier. Its design can be cumbersome unless a combination of digital and analog methods are used allowing for the high power efficiency and superb linearity of the Digital Linear Amplifier.