Microphone Box (115 V, 50/60 Hz)
Experiment: Speed of sound in air (230 V, 50/60 Hz)
Microsecond Counter (230 V, 50/60 Hz)
Kundt's Tube E
![Microsecond counter (115 V, 50/60 Hz), 1017334 [U8498285-115], 음향](/imagelibrary/U8498285-115/U8498285-115_01_Microsecond-counter-115-V-5060-Hz.jpg)
![Microsecond counter (115 V, 50/60 Hz), 1017334 [U8498285-115], 음향](/thumblibrary/U8498285-115/U8498285-115_01_1200_1200_Microsecond-counter-115-V-5060-Hz.jpg)
![Microphone Box (115 V, 50/60 Hz), 1014521 [U8498283-115], 음향](/thumblibrary/U8498283-115/U8498283-115_01_140_140_Microphone-Box-115-V-5060-Hz.jpg)
![Experiment: Speed of sound in air (230 V, 50/60 Hz), 8000567 [UE1070310-230], Acoustics](/thumblibrary/UE1070310-230/UE1070310-230_01_140_140_Experiment-Speed-of-sound-in-air-230-V-5060-Hz.jpg)
![Microsecond Counter (230 V, 50/60 Hz), 1017333 [U8498285-230], 디지털 카운터](/thumblibrary/U8498285-230/U8498285-230_01_140_140_Microsecond-Counter-230-V-5060-Hz.jpg)
![Kundt's Tube E, 1017339 [U8498308], 음향](/thumblibrary/U8498308/U8498308_01_140_140_Kundts-Tube-E.jpg)