Needs New Photo

G3-52: ROPE WAVE GENERATOR - ROPE TENSION VS WAVELENGTH
G3-53 STANDING WAVES IN A STRING
G4-12: STANDING WAVES ON A SOAP FILM
H1-03: BELLS
H1-04: BELL IN VACUUM - PORTABLE
H1-11: MICROPHONE AND OSCILLOSCOPE
H1-12: VISIBLE WAVEFORMS ON LARGE SPEAKER
H1-21: SPEED OF SOUND - PHASE CHANGE
H1-23: SPEED OF SOUND IN ALUMINUM
H1-24: SPEED OF SOUND IN HELIUM
H1-25: SPEED OF SOUND BETWEEN TWO MICROPHONES
H1-26: SPEED OF SOUND IN GARDEN HOSE
H1-27: SPEED OF SOUND - LISSAJOUS FIGURES
H1-31: SOUND LEVEL METER
H1-44: ULTRASONIC MOTION DETECTOR WAVE FORM
H2-01: FOCUSING OF SOUND WITH CONCAVE REFLECTORS
H2-03: ACOUSTIC RADAR
H2-24: AUDIBLE YOUNG'S EXPERIMENT - MIC AND SCOPE
H2-25: QUINCKE'S INTERFERENCE TUBES
H2-28: FOURIER SYNTHESIZER - ADDITION OF WAVES

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