47dB Microphone Preamplifier Kit
This deceptively simple 2 stage transistor preamp kit provides a remarkably clear boost to allow a microphone to be used in a standard line level input.
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Instructions x 1
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PP3 9V Battery Clip x 1
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1µF Boxpoly Capacitor x 2
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100nF Ceramic Capacitor x 1
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10µF Ceramic Capacitor x 1
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100µF Electrolytic Capacitor x 1
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22kΩ 1/4W Carbon Resistor x 1
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4.7MΩ 1/4W Carbon Resistor x 1
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1MΩ 1/4W Carbon Resistor x 1
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3.3kΩ 1/4W Carbon Resistor x 1
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47kΩ 1/4W Carbon Resistor x 1
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BC547B Transistor x 2
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Neutrik NYS2152 1/4" (6.3mm) Jacks x 2
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PCB x 1
Technical Specifications:
Input Voltage: 9VDC
Gain: 47dB
THD: < 0.5%
