Universal Kymograph Assembly

Universal Kymograph Assembly

This Assembly includes the Universal Kymograph with Stimulator plus a comprehensive set of accessories with a 165 page Applications Manual with detailed instructions for over 30 experiments.

Item# Description U.S. List Price Quantity
50-7392 Universal Kymograph Assembly, 230 VAC, 50 Hz
50-7384 Universal Kymograph Assembly, 115 VAC, 60 Hz
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This Assembly includes the Universal Kymograph with Stimulator plus a comprehensive set of accessories with a 165 page Applications Manual with detailed instructions for over 30 experiments. For locust work, a special cork mounting block is supplied, which wedges vertically in the muscle chamber.

Some of the possible experiments include:

Frog Heart In Situ Preparation:

  • Recording of cardiac activity
  • Effect of stimulation of the heart (refractory period compensatory pause)
  • Demonstration of conduction path (stimulus ligatures)
  • Effects of stimulating the vagus nerve (cardiac inhibition)
  • Effect of drugs

Muscle-Nerve Preparation:

  • Effect of stimulating voltage (simple muscle twitch)
  • Effect of stimulation frequency (tetanus)
  • Staircase phenomenon (Treppe)
  • Effect of repeated stimulation (fatigue)
  • Effects of drugs on muscles
  • Effect of pre- and after-loading on muscle efficiency


Specifications50-739250-7384
Contact ArmsTwo fully variable ‘opto-triggering’ producing a short circuit across ‘contract’ socketsTwo fully variable ‘opto-triggering’ producing a short circuit across ‘contract’ sockets
CylindersNot includedNot included
Dimensions (H x W x D) English18.1 x 9 x 8.7 in18.1 x 9 x 8.7 in
Dimensions (H x W x D) Metric460 x 230 x 220 mm460 x 230 x 220 mm
Frequency0.1 to 100 Hz continuously variable in 3 ranges, 0.1 to 1.0 Hz, 1 to 10 Hz and 10 to 100 Hz0.1 to 100 Hz continuously variable in 3 ranges, 0.1 to 1.0 Hz, 1 to 10 Hz and 10 to 100 Hz
Impedance< 25 ? at max. output current of 250 mA< 25 ? at max. output current of 250 mA
Mode SelectionContinuous, single and trigger via contact arms on spindleContinuous, single and trigger via contact arms on spindle
Output Voltage0 to 25 V, continuously variable in 3 ranges, 0 to 250 mV, 0 to 2.5 V and 0 to 25 V0 to 25 V, continuously variable in 3 ranges, 0 to 250 mV, 0 to 2.5 V and 0 to 25 V
Pulse Width6 preset widths of 0.05, 0.1, 0.5, 1 2 and 5 ms6 preset widths of 0.05, 0.1, 0.5, 1 2 and 5 ms
Sockets2 x 4 mm sockets2 x 4 mm sockets
Speed RangeInfinitely variable from 0.006 to 625 mm/sec with 500 mm circumference cylinder; 0.012 to 1250 mm/sec with 1000 mm circumference cylinder, cylinder not suppliedInfinitely variable from 0.006 to 625 mm/sec with 500 mm circumference cylinder; 0.012 to 1250 mm/sec with 1000 mm circumference cylinder, cylinder not supplied
Spindle RotationEither continuous or single revolution using manual start/stop controlEither continuous or single revolution using manual start/stop control
Weight (English)16.5 lbs16.5 lbs
Weight (Metric)7.5 kg7.5 kg
Writing MediumSmoke or ink, dependent on recording cylinder chosenSmoke or ink, dependent on recording cylinder chosen