GALVANIC DC – Plain ripple free D.C. with variable amplitude.
INTERUPTED GALVANIC – Rectangular pulses of 10ms, 30ms, 100 and 300ms duration at a repetition rate of 1 pulse per sec.
PLAIN FARADIC – Faradic pulses of 0.7 ms with pulse repetition frequency of 40 per sec.
SURGED FARADIC – Faradic pulse of 0.7ms pulse duration with repetition frequency of 40 per sec. Surge rate variable from 0.8 sec to 3 secs. With fixed rest period of 0.5 sec.