15:06 Run25 Pulser walkthrough EGG Ortec 448 Pulser Amplitide 90,000-10,000 @ 10,000 step Normalise 5.0 Attenuators x5 IN t_r 100ns Tau_d 50us Frequency Int Osc 50Hz Polarity + ( - polarity via Cooknell SA1 Sum & Invert Amp )