Hello everyone in this video how to create a simple class a stereo amplifier using 12v power from the old computer source and all in the power supply box.
To repair a power supply for a stereo amplifier.
A what combination of these capacitors has the proper electrical characteristics.
I blew mine up using a guitar cable as a speaker cable.
To repair a power supply for a stereo amplifier an electronics technician needs a 100 μf capacitor capable of withstanding a potential difference of 90 v between the plates the immediately available supply is a box of five 100 μf capacitors each having a maximum voltage capability of 50 v.
Preamp power amp and speaker.
Vintage receiver repair and modification.
A very large power supply has better v rail supply regulation.
Another test is to check the output dc voltage at the speaker output jack.
Your power amplifier receives the electrical current from the preamp and adds voltage before sending the signal to the speakers.
Your amplifier or home stereo has three main components.
Your preamp converts the audio signal into an electrical current.
Power amps blow when they are driven to clipping and don t have protection against it.
Usually the first thing i do was to connect a speaker at the output jack to see if the sound really not present.
The amplifier in an audio system serves as the central command unit in a way as it takes the audio from the source amplifies it and sends it to the speakers.
What looks on.
However because an amplifier can not be driven with music greater than 1 3 of its capacity with a sine wave the size of a power supply does not need to be greater than its full power rating into a speaker.
A customer of mine brought to me the tac integrated stereo power amplifier with the model of av 355 for repair.
The only disadvantage of a large power supply is mass.
The complaint was no sound but have power.
A receiver or integrated amplifier is even more involved in its role as it has source.
To repair a power supply for a stereo amplifier an electronics technician needs a 100 µf capacitor capable of withstanding a potential difference of 90 v between its plates.
The power supply is by far the largest component in the whole system the class a amplifier it feeds is the size of an sd card.