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Amplifier 2x35W.

May 13, 2010 Electronics / DIY amplifier 74 142 15

The amplifier assembled on a TDA7262 chip, the power in the stereo version is 35 watts, and in mono 80 watts.

Here is the assembled amplifier

Scheme:

stereo option

bridge option

I bought the case in a radio store, I took a transformer from a broken music center, a cooler and a radiator from an old computer.

All assembled

Photo of the amplifier during operation

Back view

If you have questions, ask.

Source:

come back

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Comments (15)

#1 SVL Guests October 26, 2010 10:54 PM
0

1. there is no need for such a radiator.
2. When correctly configured, the microcircuit will warm up much less!
3. Do not spoil the hardware!
4. Why is he so powerful for you? The column on which he stands does not draw 35 watts, but with a power of 10 watts, it is not sitting in the room.
- To answer
#2 Viki Guests February 2, 2011 09:48
0

svl, you’re wrong about 10 watts, I’m not enough 60 watts, I’m calmly sitting in the room. will have to do
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#3 ilshat1996 Guests March 1, 2011 00:08
0

Please tell me, where can I buy or pull out a microcircuit, or how to do it myself?
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#4 NOTFRONT Guests March 1, 2011 14:49
0

There are such shops called radio parts or something like that. Keyword "Radio". Here they have similar microcircuits.
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#5 ilshat1996 Guests March 1, 2011 16:38
0

Clearly, of these two schemes, which please tell me to collect
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#6 NOTFRONT Guests March 1, 2011 20:25
1

What do you want. In the stereo (1st circuit) version of 35 watts, and in mono (2nd circuit) 80 watts.
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#7 CJIAB9IH Guests July 4, 2011 12:33
0

opa my amp, I redo it for 80W. and about the speakers, the speakers are 15 watts in the photo from the music center (good), and by the way, the homemade models have not been working for a year now
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#8 feelloff Guests July 4, 2011 17:59
0

Well done! Cool amp.
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#9 Veent Guests October 15, 2011 23:27
1

I assembled 2x70W in a case of the same size, there is not even a cooler needed)) there is almost no heating
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#10 cat Guests February 20, 2012 15:45
0

2x100 watts is not enough for me at home. And here you are talking about 10

[b] cat [/ b], well, then you probably need to see a doctor ...

veent, show the circuit how you assembled your amplifier.
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#11 Veent Guests February 25, 2012 2:03 p.m.
0

[b] cat [/ b],
- links to third-party resources are prohibited-
Also on two tda1562 you can

And if you turn on the circuit in the bridge version, the sound quality is lost. We are talking about this article, and tda1562 is not a bridge and there will be no heating like an iron.
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#12 Veent Guests February 26, 2012 12:04
0

[b] cat [/ b], Link closed, I collected on STK402-070
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#13 pxel55 Guests September 29, 2012 04:10
0

If you can write a list of details
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#14 Evgeniy Guests December 28, 2013 17:26
1

I don’t know about the bridge, but I don’t understand where the 35W values came from, if the microchip itself can only use 20 by the datasheet?
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#15 Dmitry Guests September 21, 2015 08:18
0

Can I use a UPS from a PC or DVD? enough power?
- To answer