In order to facilitate quantity production and to simplify maintenance, unit construction was used throughout. The whole oscillator assembly was made one removable unit and the power supply and modulator section was another unit. Connections were made between units by means of jumper wires connected between adjacent terminal strips.
Other mechanical features contributed materially to the utility and acceptability of the instrument. Among these was an edge-illuminated frequency dial which could be read regardless of external lighting conditions.
The unit was adapted for mounting in a standard ATR rack, and the whole assembly was shock mounted within its carrying case, a feature that made it possible for the instrument to withstand without damage the severe conditions of military use. —R. A. Soderman
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