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BELL SYSTEM TECHNICAL JOURNAL 



from 100 cycles to 7 megacycles as employed in a naval fire-control radar 

 equipment. 



Fig. 35.— Typical designs of radar receiver video frequency transformers. 



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Fig. 36. — Simplified schematic diagram of video amplifiers as employed in AN/APQ-7 

 airborne radar equipment. 



Figure 36 illustrates a video amplifier circuit arrangement as develojKxl 

 for the AN/APQ-7 radar bombing equipment during the latter period of 

 the past war. This system employed two GPI type indicators, one of 

 which was located at a remote station of the aircraft and included also an 



