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BELL SYSTEM TECHNICAL JOURNAL 



Search and Interception radar equipment shown in Fig. 3 and operates 

 within the 10.0('0-mc frequency band. The automatic frequency control 



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rig. 21. Mccluiniciil dclail.s ui cavity sUucUircs cmi)loyc(J in 1000 nic radar receiver 

 input circuit. 



circuit and two IF preamplifier stages are also included here as an integral 

 part of the converter assembly. 



The schematic diagram of the converter portion of this assembly is given 

 in Fig. 24. It should be observed that the basic arrangement of the crystal 



