Profile: Tailored Test Solutions Ltd. provides testing services to industry. Our 5000 series in-PC analogue controller offers a unique, low cost alternative to the control of servo-hydraulic test rigs. One or two channel units are available offering up to eight channels of control in a standard mid-tower PC. Analogue control combined with the power of digital supervision offers a complete, cost effective solution. The 5010 is a simple low frequency analogue amplifier circuit that amplifies the difference between two signals. This difference is amplified in a combination of three different ways, either by a standard proportional op-amp circuit, a differential amplifier or through an integrating amplifier. This resulting amplified signal is passed to a power amplifier capable of driving around 0.75A into an inductive load.