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JLCPCB Prototype for $2(Any Color): jlcpcb.com
Gerber file download here:
www.elcircuit.com/2018/07/21-...
XR2206 Function Signal Generator DIY Kit
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Bluetooth Power Amplifier Board
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Banggood App download (to get 10% off coupon)
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2.1 Preamplifier circuit this circuit is combined of Stereo tone control lm1036 + 4558 preamp and subwoofer filter 4558 include regulated power supply 15V using 7815 and 7915.
Potentimeter control subwoofer, mid-low, high, balance, volume. Subwoofer control independent and stereo tone control also.
Stereo tone control using lm1036 is specially for HiFi preamplifier.
Refer to Texas Instruments LM1036 spec sheet SNAS525C for more information. The spec sheet explains in detail how to change values of bass or treble capacitor for different tone characteristic response curves.
tone control project that uses Texas Instruments' LM1036 Dual DC Operated Tone/Volume/Balance integrated circuit. It is available in a 20-pin through-hole Plastic Dual-Inline-Package (PDIP) or Small Outline Integrated Circuit(SOIC) surface mounted package. The LM1036 is at its active lifecycle status that was originally released in the early 90’s by National Semiconductors.
Subwoofer 4558 for control subwoofer, gaining bass and subwoofer booster.