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Low Noise Balanced Microphone Preamp (2N4403)

2016-02-15 08:36  
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p66ra f1 Low Noise Balanced Microphone Preamp

Low Noise Balanced Microphone Preamp…[more]

: very low noise, close to
the theoretical minimum, high hum rejection and variable gain with a
single rotary pot, similar to that used in many professional grade
mixing desks