LG-1 Professional lab instrument designed for extreme accuracy in frequency and output level. Colpitts oscillator. Five rangess from 150 kHz to 30 mHz. Panel meter calibrated in output volts and per cent modulation. Output more than 0.1-v. Complete ocillator, buffer and attenuator shielding. Regulated power supply and 50-ohm output cable. 16 lbs. 1954 price: $39.50.