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声频率的前置放大器电路 (Amplifier of acoustic frequencies with preamplifier)Tendency of catering: 15VForce of expense: 4,......
3通道频谱分析仪电路 (3 Channel Spectrum Analyzer)This 3 channel 15 LED spectrum analyzer is the perfect addition to any......
声级计电路 Sound Level MeterThis nifty sound level meter is a perfect one chip replacement for the standard analog ......
场效应管音频混合器 (FET Audio Mixer)This simple circuit mixes two or more channels into one channel (eg. stereo into mo......
60W低音放大器 (60W Bass Amplifier)Amplifier parts: R1__________________6K8 1W ResistorFrequency response: Total har......
60W吉他音箱 (60W Guitar Amplifier)Amplifier parts: R1__________________6K8 1W ResistorPreamplifier circuit diagram......
吉他音箱电路 (Guitar Amplifier)Parts: P1______________4K7 Linear PotentiometerP2_____________10K Log. PotentiometerR......
三电平音频功率指标 (Three-Level Audio Power Indicator)Parts: R1__________100K 1/4W ResistorR2___________50K 1/2W Trimme......
自动响度控制电路 (Automatic Loudness Control)Parts: P1_________________10K Linear Potentiometer (Dual-gang for stereo)......
带低音增强的立体声前置放大器电路 (Stereo Preamplifier with Bass-boost)gh Quality, simple design 20 to 30V supplyParts: P1_____......