Educational Equipments Manufacturer, Exporters & Suppliers - School Educational Equipments Manufacturers & Exporters of Educational Equipments for Lab. Science Lab Products, Teaching Aids, Classroom Instruments, Educational Laboratory
Tuning Forks, Steel
Code: PHSW0001
Plain shanks, chrome plated/Blued. Best quality steel
| |
Frequency Hz. |
Note |
| A |
256 |
C |
| B |
288 |
D |
| C |
320 |
E |
| D |
341 |
F |
| E |
384 |
G |
| F |
426 |
A |
| G |
480 |
B |
| H |
512 |
C |
Tuning Forks, Aluminum
Code: PHSW0005
Plain shanks, Best quality aluminium.
| |
Frequency Hz. |
Note |
| A |
256 |
C |
| B |
288 |
D |
| C |
320 |
E |
| D |
341 |
F |
| E |
384 |
G |
| F |
426 |
A |
| G |
480 |
B |
| H |
512 |
C |
Brain Tuner
Code: PHSW0009
Tuning Forks, Iron
Code: PHSW0013
Round shanks, Best quality iron.
| |
Frequency Hz. |
Note |
| A |
256 |
C |
| B |
288 |
D |
| C |
320 |
E |
| D |
341 |
F |
| E |
384 |
G |
| F |
426 |
A |
| G |
480 |
B |
| H |
512 |
C |
Tuning Forks, Iron Set Of Eight
Code: PHSW0017
Tuning Forks Planetary
Code: PHSW0021
Each tuning fork is individually stamped with the musical scale note and the frequency in Hz at the base of each fork.
Frequencies include(in Hertz):
- 256 Hz- 7 ¼ " long, handle is 1 ¾ "
- 288 Hz- 7" long, handle is 1 ¾"
- 320 Hz.- 6 ¾ " long,handle 1 ¾"
- 341.3 Hz.- 6 ½" long, handle is 1 ¾"
- 384 Hz. - 6 ½" long, handle is 1 ¾"
- 426.6 Hz.- 6" long, handle is 1 ¾"
- 480 Hz.- 5 ¾" long, handle is 1 ¾"
- 512 Hz.- 5 ½" long, handle is 1 ¾"
Planetary Tuning Forks Weighted
Code: PHSW0025
Tuning Forks Chakra Set Of Seven
Code: PHSW0029
Tuning Forks Harmonic
Code: PHSW0033
Tuning Forks Harmonic Weighted
Code: PHSW0037
Tuning Forks Chakra Weighted
Code: PHSW0041
Pair Of Tuning Forks In A Resonance Box
Code: PHSW0045
For demonstrating the production of beat frequencies. Comprises two nickel plated forks A (426.6) mounted on individual boxes. One fork is provided with adjustable mass by means of which frequency may be shifted from the nominal 426.6 When both forks are sounded a clearly audible 'beat' is produced, its rate depending upon the difference in frequency between the forks.
Powell's Wave Machine
Code: PHSW0049
For demonstrating longitudinal and transverse motion. Consisting of a number of eccentric disc supporting a series of metal rods on revolving the handle, transverse waves are obtained. Longitudinal waves are obtained with bent rods running in metal guide on metal base.
Tuning Forks, Electrically Maintained
Code: PHSW0053
On sturdy streamlined base with provision for horizontal or vertical use. Forks are manufactured from selected steel. Prong is 10 x 25 x 300 mm. accurate frequency adjustment, chrome plated, vibrations rate 60 per seconds. Electromagnet can work on 6 Volts. The amplitude of vibration can vary by sliding the electromagnet inside prongs. Complete with styled, mirror and counterpoise.
Melde's Apparatus
Code: PHSW0057
Designed to show the effect of vibrations in a stretched cord, and investigate the relationship between frequency, tension and density. In addition the provision of electrical contacts, opened and closed by the vibrating armature, allow the apparatus to be used as high speed changeover switch in. Comprises a thin steel rod armature, mounted in a clamp formed by a pair of 4 mm. socket terminals, so that its free length may be adjusted as desired.
Hand Stroboscope
Code: PHSW0061
A hardboard disc with twelve 50x3 mm. slots and finger hold, pivoted on a ball bearing mount which also acts as a convenient handle. Diameter of disc. 255mm.
Stroboscope
Code: PHSW0065
This Stroboscope is small in size, light in weight, easy to carry. Although complex and advanced, it is convenient to use and operate. Its ruggedness will allow many years of use.
Display
10 mm (0.4") LCD (Liquid Crystal Display) with function annunciation.
Parameters Measured
FPM (Falshes Per MInute)
Ranges
2350 A : 50 12,000 FPM
Resolution
0.1 FPM (50 999.9 FPM)
1 FPM (over 1000 FPM)
Accuracy
+ (0.05%n+1d)
Sampling Time
0.4 second
Operating Temp
0 40°C, Power supply 220V A.C. (default) 110V A.C.
Size
220x130x115mm (8.6x5.1x4.5 inch), Weight about 1000 g.
Organ Pipe
Code: PHSW0069
Stopped, varnished wood, with movable piston marked with the chromatic scale from C (512) to (1024). Overall length when fully extended 840mm. May be used for investing the phenomenon of beats in conjunction with a second pipe of the same type.
Bell In Vaccum
Code: PHSW0073
For use on pump plate not less than 15 cm. dia. Electric Bell operating on 4-6 volts AC/DC, suspended on rubber cord in bell jar. Fine coiled wire connections to terminals mounted in rubber bung sealing the jar.
Wave Form, Helix
Code: PHSW0077
Steel wire close-wound helix 20mm. diameter, closed length 3 meters extending to approx. 9 meters, with looped ends.
Science Lab Supplies Division of Narang Medical
