Magnetic-phono-preamplifier


Posted on Feb 19, 2013

This simple stereo amplifier uses a National LM3871C. The pin numbers in parentheses are for one channel, and those not in parentheses are for the other channel. The supply voltage can be +9 to +30 Vdc at about 10 mA. The output voltage swing is about Vee-2 V pk-pk.


Magnetic-phono-preamplifier
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The preamp should be able to deliver at least 5 V.




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