Vintage Military Rf Signal Generator, An/urm26b

US $1972

  • Elgin, Illinois, United States
  • Mar 1st
Up for auction is an AN/URM26B signal generator. The generator will provide a modulated or unmodulated signal over the range of 4 MHz to 405 MHz which can be varied between 0.1uV to 0.1V. The signal can be modulated at 400 or 1000 Hz. The generator is still relatively accurate. I compared its output signal to an HP8640’s output (To be honest I can not make any guarantee as to the accuracy and/or calibration of the 8640 and HP141S spectrum analyzer). See the attached photos. The first photo is the 8640’s signal (100MHz at -50dBm) and the second is the 26B’s signal. The signal frequency is essentially the same however the 26B’s signal level appears to be about 6dBm higher. I do not have any of the adaptors that were supplied with it. I have included a copy of the user/repair manual. The housing is typical of a piece of equipment of this vintage and has some dents and paint scuffs and scratches. It is not real pretty. Fortunately this has no effect on performance. The generator has performed well for me for a number of years until I replaced it with the 8640, however as with all vintage electronic equipment I can not make any guarantee other than it worked when it left my house. Also it is quite heavy, approximately 32 pounds so shipping will not be cheap. Local pickup is an option.

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