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>Homemade speakers and audio amplifiers for our animals| | | [How-to] [audio]
enotik500
Message#1
04.04.10, 20:52
Tehnohelp. Yet one of
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Homemade speakers and audio amplifiers for our animals
Collect questions for writing ACF ever do you have when working with ICs TDA2822 and tda7050, assembly amplifiers to them, operation, and all you wanted to ask, but did not dare

Questions or post in this thread or in PM!
Thanks in advance for your understanding and your participation! : Thank_you:
ACF is already written!I am waiting for your photos Collection Amplifier for accommodation in FAQ,.
For questions you are welcome here, either in the facts!
: W3bsit3-dns.com:
FAQ on the creation of an amplifier for our devices

Post has been editedHanzo - 03.10.10, 09:43
6yktor
Message#1262
13.03.17, 23:29
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Alcatel POP C5 OT-5036D

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Un7 assembled and work perfectly (signaling from the resistive path 1000mph parallel to the minus, there are no capacitors at the input, there are no capacitors from the 4th leg to 12 capacitors, from the 1st to the 4th 150kΩ, from the 7th to the minus 1000mkf, from the 6th to the minus 50 ohm 470mkf, from the 5 472th kondar To minus and 102d to 12yu, from 12th 1000mkf output and to minus 1 Ohm 0.1 ICF). TDA I collect by a canopy until it works as it should, according to different schemes 100mcf c4 feet 10, conder 104 1Om per minus, etc. When the power and signal wires are connected, a strong background, especially at low volume, when the volume is increased, the background merges, the chip snorts something that looks like music. I want to collect 2 + 2 channels for the volume (movie)

Post has been edited6yktor - 13.03.17, 23:31
6yktor
Message#1263
13.03.17, 23:44
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Alcatel POP C5 OT-5036D

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Power trans 220-20v, a diode bridge, a stabilizer on a transistor up to 15v, a capacitance of 2200 mkf 50 volts, a current of 2 amperes will give out, maybe more, 7ki work and from a weaker source: the power suffers
Alex_1959
Message#1264
14.03.17, 09:15
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I love to understand other people's schemes by their "verbal portrait", and even then it would be nice to use a "portrait", but here's the "sketch": angry:
It's absolutely not clear how you simultaneously use both 174НН7 and ТДА2500, if both of them are power amplifiers?
Well, with such a spacious installation, long wires and, probably, freely scattered over the entire layout of the earth is not at all strange that instead of an amplifier you got a "hidden wire finder", catching all the guidance around.
Have printed circuit boards of operating amplifiers been seen? About what shielded wires are used for, shielding tracks and fields on the printed circuit board and that the interference depends on the topology of the grounding conductor and the points of connection of the power wires and the signal you heard? And why did not they consider it during the installation?


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Yours faithfully,
Alexey (Alex_StOn other forums)
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6yktor
Message#1265
14.03.17, 09:42
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Alcatel POP C5 OT-5036D

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Both power amplifiers, are there any limitations in sharing chips? : Sveta:. By wiring around the ground, red is a plus;)

Post has been edited6yktor - 14.03.17, 09:45
Alex_1959
Message#1266
14.03.17, 21:45
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Well, how many words can describe the scheme?
Or is it a secret development and state secret? Well, keep it, keep it.
6yktor @ 14.03.17, 09:42*
By wiring around the ground
The ring on the ground is an excellent antenna for catching pickups.

Post has been editedAlex_1959 - 14.03.17, 21:45


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Yours faithfully,
Alexey (Alex_StOn other forums)
HUAWEI HONOR 7(PLK-L01C10B331, Android 6.0 Marshmallow, EmUI 4.0.2) + HUAWEI ASCEND P6 S (P6S-U06C17B851, Android 5.1.1, EmUI 3.1) + Explay N1 (smartphone) + Samsung GT-S5830 Galaxy Ace
6yktor
Message#1267
14.03.17, 22:41
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Alcatel POP C5 OT-5036D

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O.O as a typical scheme, parallel connection, only the rc circuit on each channel at the input, I'll try to finish off

Posted on 03/14/2017, 22:43:

Ring antenna, but what about the body for example? There's something like a square will be?)
Alex_1959
Message#1268
15.03.17, 09:16
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Strange some kind of dialogue turns out ...
Alex_1959 @ 13.03.17, 22:50*
If you put the assembled circuit ...
6yktor @ 13.03.17, 23:29*
Un7 ... signal from the resistive path 1000mkf parallel to the minus, there are no capacitors at the input, there is no capacitors from the 4th leg to 12 capacitors, from the 1st to the 4th 150kΩ, from the 7th to the minus 1000mkf, from the 6th to the minus 50 ohm 470mkf, from the 5 472d conder to the minus and 102d On 12yu, with 12th 1000mkf output and to minus 1 Ohm 0.1 ICF). TDA I collect by a canopy until it works as it should, according to different schemes 100mcf c4 feet 10, conder 104 1Om per minus, etc.
6yktor @ 13.03.17, 23:44*
Power trans 220-20v, diode bridge, stabilizer on a transistor up to 15v, capacity 2200mkf 50 volts
Alex_1959 @ 14.03.17, 09:15*
I love to understand other people's schemes by their "verbal portrait"
6yktor @ 14.03.17, 09:42*
By wiring around the ground, red is a plus
Alex_1959 @ 14.03.17, 21:45*
Well, how many words can describe the scheme?
6yktor @ 14.03.17, 22:41*
As a typical scheme, parallel connection, only the rc circuit on each channel at the input
: Wallbash:: angry: It seems that I'm guessing:
Alex_1959 @ 14.03.17, 21:45*
This is a secret development and state secret
Sorry, I will not ask about the scheme anymore. Pull around with it yourself. Soldering iron in your hands and Google to help!


--------------------
Yours faithfully,
Alexey (Alex_StOn other forums)
HUAWEI HONOR 7(PLK-L01C10B331, Android 6.0 Marshmallow, EmUI 4.0.2) + HUAWEI ASCEND P6 S (P6S-U06C17B851, Android 5.1.1, EmUI 3.1) + Explay N1 (smartphone) + Samsung GT-S5830 Galaxy Ace
6yktor
Message#1269
15.03.17, 16:20
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Alcatel POP C5 OT-5036D

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The effort is ready!) 4.5 volts per channel, power 8-18v, mikruhi cost about 20r. , The sound is good, from the year 2005 had to be abandoned, in no way it was possible to combine two amplifiers in one.
Posted image
Azathtot
Message#1270
16.03.17, 11:17
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6yktor @ 15.03.17, 10:20*
It did not work in any way to combine two amplifiers in one.

We would be very surprised if it turned out


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Ambidextr
Message#1271
16.03.17, 18:44
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I did not find a suitable topic, I will ask here from those who understand the sound. I myself just learn this topic.
There are a couple of Soviet speakers 10AC-231, 4 Ohm, 2 * 10W.
And there is a guitar amplifier Marshall MG15CDR (only the head, without the speaker). Is there a difference between a guitar amp and a household amplifier? I understand that no, and you can use it for home use?
The Internet found a description that this Marshall 2-channel.
1. Two wires (black and red) came from it to the speaker, is this one channel? Or do you need to hook both speakers to the same wires? I added both, they play, everything is fine.
Posted image

2. There is still an output to the headphones (emulated headphones) 6.25 mm, connected to it one column, but it sounds much worse than in the first case, so it should be?
3. When connecting to the emulated line out jack, there was no sound from the speaker at all.
Posted image

4. When the Reverb knob is turned, the sound does not change, the reverb does not move. Or is he just for a guitar?
6yktor
Message#1272
16.03.17, 20:57
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Alcatel POP C5 OT-5036D

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Can I check whether the minus is black, on the case with a multimeter, if 2 speakers are connected, minus the same somewhere they took?))
I do not understand well: blush:
The balance in the player to twist there is a difference? And what a guitar can differ from the same phone as the source of the signal; There may be a delay, maybe it is a branch of a reverberator ... From household UMZCH can differ voracity

Post has been edited6yktor - 16.03.17, 21:04
6yktor
Message#1273
17.03.17, 09:12
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Alcatel POP C5 OT-5036D

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2Azathtot
What's wrong with that? The problem is in the power supply, and the supply of signal wires. The scheme will have to be complicated, it's probably bipolar to do, and the DU should be used, and there's a total of 30-30 watts, respectively, and the power consumption is higher, and the total price ^
To naplikov that abound.
I connected parallel to the linear output of the sub, purchased, - a sound worthy of expensive amplifiers.

Post has been edited6yktor - 17.03.17, 09:15
Salmakov
Message#1274
10.04.17, 16:58
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Guys advise the solution. Purchased TDA 7294P with BT module, there is a hiss during playback, with a second pause 2 hisses and disappears. Is there a way to cure?
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Post has been editedSalmakov - 10.04.17, 17:00
vova13415
Message#1275
10.04.17, 17:20
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* Salmakov, Neee Bro: happy:
I myself have such a miracle, not from this medicine
Salmakov
Message#1276
10.04.17, 17:44
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Vova13415 @ 10.04.17, 18:20*
No from this medicine

Even if the condoms to stick? : Wacko:

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