Dual Notch Filter
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Catalog Number: 74-78-1
The Dual Notch Filter has been designed to eliminate troublesome 60Hz pick-up and 120Hz ground loop noise in electrophysiological recording set-ups.
The Dual Notch Filter has been designed to eliminate troublesome 60Hz pick-up and 120Hz ground loop noise in electrophysiological recording set-ups. Designed to be used after input and conditioning amplifiers, before display and analysis instruments where line power related noise is troublesome.
The instrument has a wide dynamic range so as to be versatile enough to use with a variety of amplifiers. The 60 and 120Hz filters can be activated separately. The instrument can also be ordered as two independent circuits, each set at as elected frequency.The Dual Notch Filter requires + and -15V power (cableprovided). It can be ordered with 50 and 100Hz notch frequenciesfor areas with 50Hz frequencies.
Input Impedance: 1MOhm
Input Dynamic Range: +10V
Frequency Response: DC-20KHz
Passband Voltage Gain: Unity
Notch Width (-3dB): 57.2 - 62.9Hz, 114.3 - 125.7Hz
Signal Attenuation at 60 & 120Hz: >40dB
Power Required: +/-15V DC, 20mA
Dimensions: 7" x 2 3/4" x 9" (17.8 x 7 x 22.9 cm) 2 lbs. (0.9Kg)
CONTROLS / CONNECTORS
Filter ON (2): 2-position toggle switches to independently activate or bypass the 60Hz and 120Hz notch filters
Input: BNC Connector
Output: BNC Connector
Power (Back Panel): 5-pin Molex receptacle for connecting +/-15V DC power (60cm mating cable provided)
74-78-1 Dual Notch Filter
