Fox2 PCB with all components
Price Rs 299
Fox2 PCB - 2 nos
Price Rs 199
Fox2 PCB - 1 nos
Price Rs 119
Once upon a time there was a guy named Mohan, one day his amplified stereo speakers stopped working.
Out of curiosity he opened the speaker box, inside was a pcb with many electronic components and wires.
At first he thought so many parts & wires, how I am going to replace it, but he was clever like a fox.
So he searched the net for similar pcb board and found many boards but nobody is explaining how this thing works and how you can make it yourself.
Then suddenly one board caught his eye, and it was (you guessed it right) FOX2. Rest is history.
Moral of the story – Electronic circuit boards are not made by aliens, anyone can make them.
* as per TDA2030A Unisonic Technologies datasheet.
Click Here to download TDA2030 amplifier circuit diagram
This circuit has on-board power supply rectifier made of Diode D1, D2, D3, D4. Capacitor C1 & C2 are used to filter the DC supply.
Main job of amplification is done by ic U1 and U2. Rest are the supporting components.
Following is the circuit description of ic U1. Ic U2 also works in similar manner.
Input signal is received on pin no.1 (Non Inverting Input) through C3.
R1 defines the input impedance.
R3 & R5 connected to Pin no.2 (Inverting input) set the closed loop GAIN.
Changing any one or both of these resistor values will change the GAIN of the amplifier.
Pin no.5 is positive supply, Pin no.3 is negative supply and no.4 is output pin.
Please note that the Metal Tab of ic U1 is connected to negative supply internally, so proper insulation is necessary when fitting ic U1 & U2 on heatsink.
PCB designed with thick copper tracks & large solder pads to facilitate straightforward placement and soldering of components.
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