Bruel & Kjaer 2625 Vibration Pick-up Preamplifier

Bruel & Kjaer 2625 Vibration Pick-up Preamplifier Solid state low noise preamplifier. Three selectable inputs with individual sensivity adjustment. Variable gain from -40 to -20 dB and 0 to +20dB. Fixed gain 0 dB and -40dB. Integration networks for measurement of velocity and displacement. Selectable lower limiting frequencies- Operated from...