Digitimer recommends Thurlby Thandar function generators for use with our D179 Amplifier Performance Checker. The D179 is capable of attenuating a calibrated output from one of the function generators below so it can be fed into a clinical amplifier system in order to check the amplifier is operating correctly. The TG315 is suitable for clinical neurophysiology departments where only EEG measurements are taken. The TG1010A is suitable for evoked potential, EMG and EEG equipment, where an additional trigger input is needed. If a TG1010A is being ordered along with a D179, a BNC cable (D179-Leads-BNC) is also needed.