Why? Because drivers 2sa940 and 2sc2073 blown instantly because him put them wrong BCE. This is not way to increase power Must change power supply voltage, or use lower impedance output .. Need change some drop voltage resistor value and power rating , need change bridge rectifier etc.. Better to use New speaker with high efficiency and quality and low power and high quality amplifier than high power amplifier and bad speakers and quality.
electronicshelpcare.net/2-transistor-amplifier-diagram-using-battery/
Magnífica adaptación a cuantos amperios subió el puente diodo xq esa tarjeta trae un puente y capacitores más pequeños
electronicshelpcare.net/2-transistor-amplifier-diagram-using-battery/
Good job
And good luck man
And good like for you
electronicshelpcare.net/2-transistor-amplifier-diagram-using-battery/
hw watts
Testing
Why? Because drivers 2sa940 and 2sc2073 blown instantly because him put them wrong BCE.
This is not way to increase power
Must change power supply voltage, or use lower impedance output ..
Need change some drop voltage resistor value and power rating , need change bridge rectifier etc..
Better to use New speaker with high efficiency and quality and low power and high quality amplifier than high power amplifier and bad speakers and quality.