Preamplifier Model 5186

Differential voltage preamplifier


The model 5186 is a high input impedance, low-noise, AC-coupled voltage preamplifier which offers a true differential input.

Supplier: Signal Recovery


  • Real differential input
  • High impedance
  • Low-noise

It has a frequency response from 0.5 Hz to 1 MHz and three switched gain settings of ×10, ×100 and ×1000. It is a general purpose preamplifier which has the facility to be connected to grounded sources in a manner which breaks ground loops and since it has a true differential input it can be used to measure floating sources, such as the output from an AC bridge, without imposing an asymmetrical load onto the source.


  • Impedance 100 MΩ // 20 pF
  • Frequency Response 0.5 Hz to 1 MHz
  • C.M.M.R.
  • Gain x 10, x 100 or x 1000
  • Operates on batteries or mains

Product applications

  • Acoustic research
  • AC bridge measurement
  • Measure amplifier hall effect
  • Preamplification of an oscilloscope