User Manual

3B SCIENTIFIC

PHYSICS

Horn speaker U8432680

Instruction sheet

04/09 SP

1 Stand base (not included)

2 4-mm safety socket

3 Speaker outlet

1. Description

This horn loudspeaker can be used to approximate

a point source of sound and is better suited for

acoustic experiments than large conventional box

loudspeakers. For excitation of a Kundt tube, the

outlet of the speaker can be directly placed at the

end of the tube. For the Chladni patterns, it can be

positioned under the Chladni plate.

The dynamic excitation system of the speaker has

thermal excess current protection.

2. Technical data

Frequency range: 300 Hz…10 kHz

Power rating: 8 W

Impedance: 8 Ω

Stem diameter: 10 mm

Weight: 470 g approx.

3. Sample experiments

3.1 Kundt’s tube

Recommended accessories:

1 Power function generator U8533510 or

1 Sine wave generator U8533550

1 Transformer U8475430

1 Stand base U8611210

1 Kundt’s tube U8432845

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3B SCIENTIFIC® PHYSICS Horn speaker U8432680 Instruction sheet 04/09 SP 1 Stand base (not included) 2 4-mm safety socket 3 Speaker outlet 3 2 1 1. Description 3. Sample experiments This horn loudspeaker can be used to approximate a point source of sound and is better suited for acoustic experiments than large conventional box loudspeakers. For excitation of a Kundt tube, the outlet of the speaker can be directly placed at the end of the tube.
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Fig. 1 Experiment set-up for Kundt’s tube 3.2 Chladni patterns Recommended accessories: 1 Sine wave generator 1 Transformer 1 Stand base 1 Chladni plate, square or 1 Chladni plate, circular U8533550 U8475430 U8611210 U56006 U56005 Fig. 2 Experiment set-up for Chladni plate Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com 3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.