75W Slave-Amp Circuit PUBLIC

75W Slave-Amp for Guitar

75-watt RMS slave-amplifier for electric guitar. Controls Include: Drive and Volume. Frequency Range 20 Hz to 5 kHz with all controls at 50%, or 12 Hz to 15 kHz with all controls at 100%. Suitable for 6/7/8-string guitar or 4/5/6-string bass. No tone controls. No fuzz, distortion, or other effects. Intended for use as a clean slave amplifier, to provide extra loudness. High-impedance input only. Power-supply not shown. Requires two DC supplies; one regulated dual-polarity +-15 VDC @ >= 20 mA for the op-amps, and one unregulated dual-polarity +-37.5 VDC @ 2 A for the power-amp IC. And though simulator verified, treat the circuit as experimental. Breadboard test before soldering. Example Speaker: Celestion G12T-75 Guitar Speaker, 12", 8-ohm, 75W. Specifically designed for Rock music, and to handle high-gain amplification. Its sound is described as having tight lows, aggressive mids, and softened highs but with biting harmonics. Preferred by guitarist Joe Satriani. Parts Express # 294-2270. $159.00 https://www.parts-express.com