Krohn-Hite 3343 -  Dual Channel Variable Filter

Frequency 0,01 Hz to 99,9 kHz  (six subranges) and usable in one of four

Impedance: input 10 MOhm - output 50 Ohm

< 0.1% distortion (typically)

±2% calibration accuracy

0.5 mV RMS hum and noise

Pass-band gain: 0 or 20 ±0.5 dB (selected by front panel control)

Attenuation slope: 48 dB/octave

Maximum attenuation: >80 dB for input frequencies to 1 MHz

Dimensions : 425mm (L) x 135mm (H) x 450mm

Weight : 11,4 kg