If the photograph is clicked, it grows.

Bruel&Kjaer 2625 Vibration Pick-Up Preamplifier(3ch 2range)
JPY10,000 1stock
amp149




Solid state low noise preamplifier.
Three selectable inputs with individual sensitivity adjustment.
Variable gain from -40 to -20dB and 0 to +20dB.
Fixed gain OdB and -40 dB .
Integration networks for measurement of velocity and displacement.
Selectable lower limiting frequencies.
Operated from internal batteries or external 28 Volts.