Microphone Box (115 V 50/60 Hz)

Product Overview

Application:?.. This universal dual channel amplifier is part of experiments for determining the speed of sound (item no: 8000566 and 8000568) and is required accessory for Kundt s Tube E (item no: 1017339). The microphone box is used here together with the microphone probe (long) the microphone probe (short) and the microsecond counter. Product Information:?.. The microphone box is a universal dual channel amplifier for electret microphones with a band width of 10 Hz to 40 kHz. Both channels (A und B) can be switched between Signal Level and Trigger modes. The sensitivity of the pre amp is adjustable and allows measuring instruments and oscilloscopes to be connected directly. The threshold for the trigger is also adjustable. The microphone box is particularly suitable for use with long and short microphone probes and the microsecond counter in order to carry out experiments on the speed of sound. Specifications:?.. Channels: 2 separate channels for electret microphones Output signal: switchable between Signal Level and Pulse ? ? Signal: 0 14 Vpp max. Level: 0 7 V DC max. Puls low: 0 V High: 8 V DC ?length: 150 ms ? ? Output impedance: 1 k? Gain: 20x to 70x Band width: 10 Hz to 42 kHz ? ? Sensitivity using microphone? (item no: 4008308): 800 mVpp approx. at 80 dB noise level 1 kHz and minimum gain 2.5 Vpp approx. at 90 dB noise level 1 kHz and minimum gain ? ? General technical data: Inputs: 3.5 mm jack plugs Outputs: BNC socket Voltage supply: via plug in power supply 12 V AC 500 mA Dimensions: 100 mm x 75 mm x 35 mm?approx. Weight: 450 g approx. incl. plug in power supply Contents:?.. 1 Microphone box 1 Plug in power supply 12 V AC 1 Instruction sheet

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