So necessarily must be connected to the GND line. The main purpose that I used the heatsink for the regulator Tone Control capacitor (15000uF) between the opamp with the shield (shield) on the task. Lm3886 insulate it from the cooler and regulators. The output of the Mean number of lm3886 3, coil 1.2 mm wire leg on top of my fit 10 rounds of resistors 2W resistors, I used this way. Rain for resistors in the 10-15K can be selected according to the choice between. The + and – supply routes, lines and the speaker of the day should be covered with solder. The amp feeds LM3886 Datasheet you exported the file and accordingly these resistors should be selected according to the impedance of the speaker should be calculated. The value for Res tone: (Vamp-20)/30mA power (Vamp-20V)x30mA The value for Res: (Vamp-20V)/70mA power (Vamp-20V)x70mA – you get based on the drawing of the PCB. There are differences between the PCB primarily with photos, some of the material in my hand because of some values in the development stage.
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