An Ultra-Low-Noise Pre-Amp For Audio Applications
Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors, hydrophones, guitar pickups, microphones, and turntables.
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Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors, hydrophones, guitar pickups, microphones, and turntables.
Texas Instruments combined JFET inputs with a bipolar output stage in 1977—and it slowly took over guitar pedals, synthesizers, and mixing desks.
Can transistors switch below the conventional power limit without sacrificing useful current? A 2D device uses quantum tunnelling to push beyond it. A research team led by The Hong...
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