Model #SD117A/SD114B OPT 3

Special Features
C/o sd117a automatic level programmer, sd114b swp osc servo; programmerhas null mtr, 6 levels & 5 crossover freqs, solid state switching w/no relays, preset of test profile, stepped acceleration or velocity or displacement capability & control up to 1000 hz; oscillator servo has freq range 5 hz-5khz, input imp 80 kohms, output imp 600 ohms coupled through 50 uf, 14 vrms output, vrms output, dynamic range 80-85 db, input power switch selectable 105, 125/210-250 vac, 50-400 hz, 50 w