Variable (gain 10 to 60dB), logarithmic (up to 80dB) and wideband (DC to 10, 200 or 500MHz) voltage amplifiers are available for a range of applications including universal low frequency amplification, industrial sensors, detector pre-amplification, oscilliscope and transient record pre-amplification, time resolved pulse and transient measurements, to LIDAR systems, signal compression and particle detection. Low frequency volatage amplifiers include control of gain settings and bandwidth by local switches directly on the amplifier.