B&K 2623 Accelerometer Preamplifier
This preamplifier is designed specifically as an impedance transformer with very high input impedance and low output impedance.
main specs:
input impedance min. 2 Gohm / 3.5 pF.
Output impedance typ. 40 ohm.
Gain 0 dB +- 0.05 dB from 0.5 Hz - 500 kHz.
Noise max. 15 uV, 2 Hz - 40 kHz
Manual and full specifications [
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