604 



BELL SYSTEM TECHNICAL JOURNAL 



23.6 23.8 24.0 24.2 24.4 24.6 



FREQUENCY IN MLOMEGACYCLE S PER SECOND 



Fig. 94.— Computed instantaneous tuning rates on heating and cooling for the 2K50 

 oscillator. These results are based on a time constant of 1.3 seconds and on the assump- 

 tion of "full on or off" operation. 



. o — ■ r-.- -"--^".v.— ^o>,.^o ^. ..li,, ^iv,M.« usLiuatui. (curves .1, D ana c 



Illustrate the power variation with frequency when the repcllcr voltage is set for the opti- 

 mum at the indicated frequency and held fixed as a cavity tuning is changed. The 

 envelope of these curves shows the power variation with frequency when the repeiler 

 voltage is maintained at its optimum value for each frequency. 



