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LM4910 stereo headphone amplifier circuit. 0.35mW power output, 3.3V operation
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Make Your Own Headphone Amp V1 : 8 Steps - Instructables
National Semiconductor : mono audio power amplifier input stages deliver low distortion - EE Times
LM4865MX SMT 1W Mono Audio Amplifier IC National Semiconductor®
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Headphone Amplifier, Class A - Kit-Amp
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NOS Vintage LM308N Chip, 1980's National Semiconductor | Reverb
LM1011N "Original" National Semiconductor 16P DIP IC 1 pc
LM1877N-9 National Semiconductor Audio Amplifier LM1877 (NOS IC, many available) | eBay
Lot of 6 DM8544N National Semiconductor IC Chip 16 Pin NEW Old Stock
LM4663 datasheet(1/10 Pages) NSC | 2 Watt Stereo Class D Audio Power Amplifier with Stereo Headphone Amplifier
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National Semiconductor LM4562NA LM4562 4562 Dual OpAmp DIP-8 (Pack of 4) | Reverb
