The Grass Telefactor S88 is a general purpose muscle and nerve stimulator. It features two output channels that can be operated independently or synchronized for more complex paradigms. The outputs are non-isolated constant voltage positive pulses. The synchronous inputs and outputs are compatible with TTL, 5 volt, and PC. A read DB25S connector permits external analog control of the timing circuits.
Train rate (S1 and S2): 1/100 seconds to 100 TPS (4 decades)
Train duration: 1 millisecond to 10 seconds (4 decades)
Rate (S1 and S2): 1/100 second to 1000 PPS (5 decades)
Pulse delay (S1 and S2): 10 microsecond to 10 second (6 decades)
Pulse duration (S1 and S2): 10 microsecond to 10 second (6 decades)
Peak output current: 450 mA
Output impedance: 250 ohm nominal on all voltage ranges; 25 ohm and 100 kohm on highest range.
Power requirements: 115/230 volts, 50/60 Hz, 125 watt peak, 20 watts standby
Dimensions: 17.25″ W x 12.5″ D x 8.75″ H
Weight: 17.41 lbs