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Waves & Sound
Hand Vacuum Pump
The vacuum pump is made of durable plastic. It can easily provide a vacuum of 500mmHg by pumping its handle, the pumping rate of which is about 15ml per pumping. The pump itself is sealed and self-lubricated. By changing its working mode, the pump can be used to establish air pressure as high as approx. 2 atm. It is a must for middle and primary school laboratories.
PH36018B -
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Waves & Sound
Ripple Tank
Transparent acrylic plastic ripple tank, supported in a sturdy plastic frame which has recesses to hold four legs with leveling feet. The tank edges are shaped to minimise undesired reflections. Tank has a drain hole closed by a rubber stopper. With two light alloy uprights to carry a horizontal rippler support rod which is adjustable for height. The ripple assembly, elastically suspended from the support rod, consists of a 4 – 6 V DC motor mounted on a wooden beam. The motor has an eccentric weight which causes the beam to oscillate. Two-point sources are provided by two plastic spheres, each mounted on a right-angle rod. A metal rod is fixed centrally into a socket in one short side of the frame to afford support to the illuminant. Overall size of the tank 580 x 500 x 80 mm, window area 370 x 280 mm, height of tank above bench level (with legs attached) approx. 375 mm. Complete with following accessories:-
- Two straight obstacles of aluminium alloy length 130 mm.
- One straight obstacle length 40 mm.
- One curved reflector radius 200 mm.
- One trapezoidal plastic plate for refraction.
- One wood hand wave roller.
- One water dropper.
- One pkt. rubber bands.
- One foam plastic sponge.
- One illuminant with a 12 V, 24 W lamp mounted in a lamp house and provided with a long supporting rod which can be attached to a retort stand. With instructions. Without power supply
PH36044 -
Waves & Sound
Ripple Tank
A complete setup for demonstrating wave phenomena including reflection, refraction, diffraction, and interference. The transparent tray (33 cm × 30 cm approx.) is supported on adjustable legs for levelling. Wave patterns are observed using a mirror and projection screen, with illumination from a white LED light source in steady or strobe mode.
Features:
- Transparent tray with 33 × 30 cm viewing area.
- Adjustable three-leg stand for levelling.
- White LED light source (steady and strobe).
- Ripple generator with interchangeable plane and point dippers.
- Digital controller: ripple frequency 1–50 Hz (0.5 Hz steps), light frequency adjustable in 0.1 Hz increments.
- Accessories: long/short/mini barriers, curved reflectors, concave/convex/trapezoidal refractors.
- Easy to assemble, operate, and clean.
- Supplied with User Manual for guided experiments.
PH36044B -
Waves & Sound
Hand Stroboscope Premium
A simple device for demonstrating the stroboscopic effect. The 250 mm disc with 12 slots and central handle makes rotating objects appear stationary. No power required, ideal for basic classroom experiments.
Features:
- Manual handle operation.
- Demonstrates stroboscopic effect on motion and wave behavior.
- Includes disc, handle, washer, bolt, and spanner.
PH36066 -
Waves & Sound
Digital Stroboscope
Stroboscopic flashes are triggered by either the internal oscillator or by external pulses which may be connected to the socket mounted on the rear panel of the instrument. Example of the many applications of this unit are to be found in motion analyism multi exposures photography, examination of moving parts and measurement of rotational speed.
Specifications:-
Input Volts: 220V AC, 50 Hz.
Max. Flash Rate: 9999 Flashes per minute.
Resolution: 1.
Display: 7 Segment LED (4 Digit).PH36067P -
Waves & Sound
Ripple Tank, Dual Purpose
This dual-purpose tank is a versatile apparatus allowing all types of waves and wave motion. With an illuminator lamp and important accessories included it forms a complete ready-to-use unit. The unique design and size allow it to be used on an overhead projector as well. Supplied in foam packing and consists of the following components:
- Ripple Tank 40 x 40 cm.
- Four push Fit Legs.
- Ripple motor with eccentric cam, mounted on PVC bar.
- Three supports for the illuminator and the motor unit.
- Motor hanging clamps.
- Spring for motor support.
- Lamp Unit halogen 6 Volts.
- Concave Perspex Plate.
- Convex Perspex.
- Rectangular Perspex Plate.
- Curved Reflector.
- Barrier Large.
- Barrier Small.
- Plastic Roller Bar.
PH36068
+1 (630) 345-3450