Frequency response test set (NSN 6625-01-081-7012)
Special Features
Processes demodulated 27.8 khz signals from the hp 11664 detectors for logarithmic display on hp 180 series oscilloscopes; independent resolution for each channel in steps of 10, 5, 1, or 0.25 db per division; independent offset for each channel; opt e09 includes these hp p/n's: 11664a, 11666a, 182t, 8622c, & 86222b
