TDA2050 stereo amplifier build pt2

Now with the board soldered and wires connected, its time to test it out. Hooray! It worked on the first try. No rework to do. Now it's time to build a power supply for it and have a nice wooden case made.

Music Credit: The Baltimore Consort. "Tunes from the Attic" CD
Parts of "Jenny my Blithest Maid" and "Well Hall"

Category:

Science & Technology

Tags:

• MVI
• 0436

[faizansho1]

Awesome work...!!!

can i get the circuit diagram of this circuit....??

simulation or any thing...??

Please can u Email it 2 me on

faizansho@hotmail.com

[vegmatic1966]

@faizansho1 See the datasheet for the TDA2050. It is basically the same circuit. I may be doing a perfboard layout video when I get some time.

[cd4600]

Should one place the potentiometer on the input/output pins to adjust the sound level, or is it better to use a potentiometer as the feedback resistor so that the gain can be adjusted while in operation? Which is better? Maybe you could do a video about that sometimes. Thanks, great stuff!

[vegmatic1966]

@cd4600 Power amp ICs will become unstable with too much or too little feedback. You never want to control the volume in the negative feedback loop.

[Henzzman]

@vegmatic1966 it was smart to mention the current limited supply,but what you did forget to do yourself and mention,was never to run chips that powerful without heatsinks,especially when testing them with music and so.

[vegmatic1966]

@Henzzman I was ruining the chips on 5 volts. ICs barely got warm. I would never run them without a heatsink on higher voltages.

[nmgt1048]

One device I used when I fixed solid state amplifiers was a variac with a meter for measuring line current. Plug in te unit under test with the variac set to zero ,turn on the unit under test, raise the voltage gradually as you check the current draw, if it's too high at a lower voltage setting, somethings wrong. It's a good, safe way to check amps without risking parts damage.

[gamerdude1989]

where in the circuit do i fit in a volume pot??? would like to add bass and treble too, but i defo need a volume dial :D

[ken25taylor]

That's awwesome, I gotta make me one of these to pulse my 8hz and 432hz into some coils for testing. thanks man!

[imaccheroni]

Nice job! and I agree with the music selection.