Special Features
3.300 in.Lg, 3.750 in.W, 2.250 in.H, self contained unit providing three nixie digits plus one over range digit, nom ac voltages required shall be 10.8v rms /center tapped/, 33.0v rms, and 78.0v rms, meter shall operate w/voltages porm 10 pct from nom and at freq from 48 to 440 hz, 0.05 pct of reading porm 1 count for 60 days at 25 degrees c, 1.000v full scale w/20 pct over ranging input voltage, 1000 mego min input impedance, over reanging, w/1.200v or greater applied, the last three digits of the display shall blank and the letters or shall light, the minus sign shall light when the input voltage is less than 0.000v;
