Working on 12 V d.c. supply. Provides dots at 1/50 second intervals.
Category: Physics Instruments
TRANSFORMER FOR TICKER TAPE TIMER GUPTA BRAND 8006131
For ticker tape timer No. PHY6142, input 220-240 V, output 12 V a.c. 1 amp.
TUNING FORK ELECTRICALLY MAINTAINED – GUPTA BRAND 8006219
.On sturdy streamlined base with provision for horizontal or vertical use. Forks is manufactured from selected steel. Prong is 10x25x300 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 stylet, mirror and counterpoise.
TUNING FORK ON RESONANCE – GUPTA BRAND 8006089
| 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. |
TUNING FORK SET OF 8 – GUPTA BRAND 8006086
Best quality nickel-plated, plain shanks, with frequency marked,
C (256),
D (288),
E (320),
F (341),
G (384),
A (426),
B (480),
C (512).
Complete set of EIGHT tuning forks, supplied in velvet case.
TWO STROKE DIESEL ENGINE MODEL – GUPTA BRAND 8006054
.A model of two-stroke diesel engine made in aluminium alloy and gun metal. Ignition is shown by means of a miniature bulb. Fuel supply is also sectioned. With hand crank, provided for manual operation. Mounted on base, with printed diagram showing working.