Breckland Scientific 2023 Catalogue

Sound & StandingWaves

Sound

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1 MYLAR LOUDSPEAKER The Loudspeaker Unit contains an 87mm diameter 12W, 8 Ohm Mylar (waterproof) loudspeaker, with 4mm input sockets. The speaker cone is fully exposed which allows it to be used for a range of experiments apart from its normal use as a loudspeaker, for example: • Comparing different waveform inputs at low frequencies from a signal generator • Observing the motion of small polystyrene beads on the speaker cone at different frequencies – this can then introduce the kinetic theory of gases • Adding a small piece of sponge or foam to polystyrene beads allows demonstration of Brownian Motion • A thixotropic mixture can be poured onto the cone and standing waves observed (also works with coloured water) Cat No. Description Price Per SWA-205-100 Mylar Loudspeaker 40.58 ea. 2 LASCELLS LABORATORY LOUDSPEAKER - NEW! A quality, high-power, 12.5cm/5” loudspeaker mounted on a robust painted metal base, with 4mm connection sockets for signal input. Suitable for all laboratory applications, the unit has a protective metal grill which can be easily removed to give access to the cone when required. Coil impedance 4W, power rating 20W RMS (40W peak). Dimensions 180 x 180 x 90 mm (l x w x d). Weight 1.4kg. Cat No. Description Price Per SWA-215-300 Lascells Lab. Loudspeaker 77.77 ea. 3 LASCELLS LOUDSPEAKER KIT - NEW! A simple kit providing all the parts required to allow the construction and understanding of loudspeakers and how they work. The kit provides enough components to construct 10 loudspeakers, and includes 10 preformed plastic bases, 10 high power neodymium magnets, a reel of enamelled copper wire, a croc. clip to 3.5mm jack connection cable, and full instructions. All parts can be reused, except the paper circles used to make the loudspeaker cone (not included). The finished speakers will produce good volume output from a radio or signal generator etc. Replacement copper wire can also be supplied. Cat No. Description Price Per SWA-180-100 Lascells Loudspeaker Kit 64.25 kit 4 TUNING FORKS SET Anodised aluminium set of eight tuning forks, supplied in a wooden box. Range C 1 - 256Hz to C 2 - 512Hz. Cat No. Description Price Per SWA-800-100 Tuning Forks Set - Aluminium 41.98 set

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Mylar Loudspeaker

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Lascells Laboratory Loudspeaker

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Aluminium Tuning Forks

Lascells Loudspeaker Kit

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406

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