Hello can i make this simple amplifier into a stereo one? 3 potentiometers used each of 100k, one is volume (and with aux, gnd wire), second is bass (4.7k resistor and 103uf cap), third is treble (104uf cap).

 

Stereo = 2 channels... you need another identical amp...

 

Indeed, you need another amplifier. BUT you will be better off finding aN EXISTING STEREO amplifier in some piece of equipmment, such as a car cassette player with a worn out transport mechanism, or possibly an old 8-track player.

 

Indeed, you need another amplifier. BUT you will be better off finding aN EXISTING STEREO amplifier in some piece of equipmment, such as a car cassette player with a worn out transport mechanism, or possibly an old 8-track player.

Note that both of those examples will have some form of NAB frequency equalization built-in, and not work well as a general-purpose audio amplifier.

ak

 

Hello can i make this simple amplifier into a stereo one?

Photo of the other side of the board? Duh.

 

I think this TS also posted about that transistor stereo amp that ran 12 volts thru the speakers. So any shape of frequency response will be good enough.
Now converting that amp into stereo? Yes, but it will cost a lot more.

Sort of like converting the Corvette into a Mustang. Very expensive and a bad idea as well.

 

Actually, he wants to convert a Corvette into ***two*** Mustangs.

ak

 

Actually that might possibly BE a stereo amp, given the number of pin connections for the IC that we are not shown. Certainly that device will need an adequate heat sink if you want the amplifier to last for more than a minute of use..
And do not ben those leads much because when they break off the game is over.

 

What is the Chip? Maybe a Bridge Output ? Make it a Dual amp?

 

The TS did not think that the component side of the board was important to their question. Does the TS really understand......

 

The TS did not think that the component side of the board was important to their question. Does the TS really understand......

I chose not to beat him up, but ... Duh!

ak

 

Maybe we will never see which amplifier ICs are mounted on that heatsink.
I see the pins of TWO 5-pins ICs on the pcb (separated with a green dot) so maybe it has a second amplifier as a spare?

If it has two amplifiers in a bridged output then they will probably be in a single IC for good DC offset matching.

I wonder if the volume and tone controls are mono or stereo?

 

Maybe we will never see which amplifier ICs are mounted on that heatsink.
I see the pins of TWO 5-pins ICs on the pcb (separated with a green dot) so maybe it has a second amplifier as a spare?

If it has two amplifiers in a bridged output then they will probably be in a single IC for good DC offset matching.

I wonder if the volume and tone controls are mono or stereo?

These are the components

 

The TS did not think that the component side of the board was important to their question. Does the TS really understand......

These are the components

 

What is the Chip? Maybe a Bridge Output ? Make it a Dual amp?

Here it is

 

Photo of the other side of the board? Duh.

 

Maybe we will never see which amplifier ICs are mounted on that heatsink.
I see the pins of TWO 5-pins ICs on the pcb (separated with a green dot) so maybe it has a second amplifier as a spare?

If it has two amplifiers in a bridged output then they will probably be in a single IC for good DC offset matching.

I wonder if the volume and tone controls are mono or stereo?

Here is yhe volume circuit

 

Now that we have something to work with . . .

Electrically, it is possible to do what you want. Mechanically, it will be very difficult.

The 6283 has two audio amplifiers in it, but in your circuit they are connected together to form a BTL amplifier - Bridge-Tied Load. This uses two amplifiers to drive one speaker in a way that increases the maximum power possible with the supply voltage. On paper, you can separate the two amplifiers so that they each amplify a different signal.

However, it will take a bunch of trace cuts and jumpers, and several new components. Plus additional volume and tone control potentiometers for the added channel. Overall, this is a lot of surgery for a device that can be replaced with a $5 module from ebay.

ak

 

Now that we have something to work with . . .

Electrically, it is possible to do what you want. Mechanically, it will be very difficult.

The 6283 has two audio amplifiers in it, but in your circuit they are connected together to form a BTL amplifier - Bridge-Tied Load. This uses two amplifiers to drive one speaker in a way that increases the maximum power possible with the supply voltage. On paper, you can separate the two amplifiers so that they each amplify a different signal.

However, it will take a bunch of trace cuts and jumpers, and several new components. Plus additional volume and tone control potentiometers for the added channel. Overall, this is a lot of surgery for a device that can be replaced with a $5 module from ebay.

ak

I... I made it..... I won't buy i make

 

Now that we have something to work with . . .

Electrically, it is possible to do what you want. Mechanically, it will be very difficult.

The 6283 has two audio amplifiers in it, but in your circuit they are connected together to form a BTL amplifier - Bridge-Tied Load. This uses two amplifiers to drive one speaker in a way that increases the maximum power possible with the supply voltage. On paper, you can separate the two amplifiers so that they each amplify a different signal.

However, it will take a bunch of trace cuts and jumpers, and several new components. Plus additional volume and tone control potentiometers for the added channel. Overall, this is a lot of surgery for a device that can be replaced with a $5 module from ebay.

ak

Would this work?