B_soundInput_prt2

[Prototyepe2]
_using Velleman K1803 Universal Mono Preamplifier from Jameco (part no. 117612).
>>I need the dynamic microphone.
Specification

• power supply: 10-30V DC / 10mA
• output impedance: 1Kohm
• adjustable output level: max. 40dB
• frequency range: 20Hz to 20kHz ± 3dB
• max. input signal: 40mV

B_soundInput_prt1, originally uploaded by thetarbre.