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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Is noise audible above 20kHz
Is noise audible above 20kHz
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Old 18th February 2018, 10:00 AM   #31
diyralf is offline diyralf
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You built a Johnson noise amplifier. For headphones 10-16dB gain are enough.
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Old 19th February 2018, 12:51 PM   #32
flyingfishtw is offline flyingfishtw  Taiwan
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Quote:
Originally Posted by diyralf View Post
You built a Johnson noise amplifier. For headphones 10-16dB gain are enough.
It is, with INA217 I'll follow the suggestion above, make it adjustable will be more reasonable. 60dB is very sensitive. But I learn so much from this tiny project.

Now I have a bit more confidence to build low noise amp.
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