It is difficult to find such a person who would not like to listen to music. To satisfy this desire, high-quality music centers, columns and other devices are purchased. To get even greater pleasure, many think about creating special color effects that can decorate any sound and create a romantic atmosphere on a date or entertainment in the process of organizing a festive party. The colorwoman also, like music centers, can be purchased, but you can do it yourself. Optimal option - Make a colorwoman on LEDs on one of the proposed schemes.

Advantages of LED products

The modern electronics market is a wide variety of LED tapes that have the most different color effects. With their help, you can create high-quality point lighting, it is possible to make a colorwoman with flashing or blurred effects.

Unlike conventional light bulbs, LEDs are characterized by a large number of positive characteristics. Among the main advantages of the LED tapes can be allocated:

• wide and diverse color gamut;
• transmission of saturated colors;
• different versions - ruler, modules, discrete elements, RGB tapes;
• high response speed;
• minimum amount of energy consumed.

Ribbons can be used at home, in clubs and in a cafe, you can effectively highlight showcases. This article describes the LED colorwoman for normal home use in more detail.

Simple scheme with one lamp

To begin with, it is worth studying a simple colorwoman scheme. This device that is performed on the same LED, transistor and resistor. Power on such a color music can be served from permanent source Current voltage 6-12 volts. The device works on the principle of an amplifying cascade with a common emitter. The impact in the form of a signal changed in frequency and amplitude enters the main base. As soon as the oscillation frequency exceeds a certain thresholdOpens the transistor and the LED will immediately flash.

This scheme has one drawback - the pace of flashing LED depends entirely on the level of the produced sound signal. In other words, the light effect will be activated only at a certain level produced music Center Volume. With a decrease in the intensity of the sound, the glow will be permanent with rare winks.

Scheme with a monochrome tape

This colorwoman on the transistor is assembled using the LED tape in the load. To organize such color music, you will need to increase the power to 12 V, find and install the transistor with the maximum current collector current, which exceeds the load current, it will also be necessary to recalculate the overall nominal resistor. A similar colorwoman is quite simple, made on one single-color LED tape and ideal for beginner radio amateurs. You can collect it without any special problems at home.

Simple three-channel scheme

To get a colorwoman, devoid of all the above disadvantages, it is worth using a special three-channel sound converter. Such a scheme is powered constant tension 9 V and able to effectively light up one or two LEDs in each channel. Among the main structural elements that are characterized by such a color-music scheme can be noted:

• three independent amplifying cascade, which are assembled on the CT315 transistors (CT3102);
• in the load of the transistors included LEDs of different colors;
• for a pre-amplification element, a network small reduction transformer can be used.

The incoming signal is fed to the secondary winding of the transformer, which in turn performs two main functions - unlocks two devices on the galvanic level, and also enhances the sound from the main linear output. After that, the signal comes to three parallel and enabled filters collected on the basis of RC chains. They operate on an individual frequency band, which directly depends on the nominal condenser and resistor.

Colorwoman with RGB ribbon

This setup scheme carries out the operation from 12 volts and is ideal for installation on a car. Such a colorwoman optimally combines the basic functions of the previously considered schemes and is able to work, both in the mode of the lamp and the color music. The second mode is achieved due to the special contactless control of the RGB-ribbon by means of a microphone. As for the lamp mode, it is based on the simultaneous launch of the glow of green, red and blue LED at full power. The selection of the mode can be performed by means of a special switch that is on a special board.

To understand how this console carries out work, it is worth studying its sequence of actions. The main source of the signal here is the microphone, converting the oscillations of the sound emanating from the phonogram. The resulting signal is insignificant, therefore requires gain. It is possible to achieve this by using a transistor or special operational amplifier. After that, the automatic level controller of the ARU is launched. It effectively keeps the oscillation of sound within reasonable limits and prepares it to subsequent processing. Built-in filters divide the signal into three parts, each of which operates in one specific frequency range. At the end, it will be necessary to simply enhance the pre-prepared current signal. For this purpose, special transistors are used that work in key mode.

Acquisition of the finished TSMU

If there is no desire to make a colorwoman to use at home, you can purchase a CMU, that is, a color-chole installation. This is a ready-made functional solution, which includes a controller. It will handle the sound, transforming it into a light-music visual representation. In the process of playing light, its intensity and color solution will change, thereby creating the effect of the real disco. Also, the TSMU device includes a panel with built-in diodes.

At the heart of these devices, there may be a spectral decomposition of frequencies where each of them will correspond to a certain color solution or predefined adjustments with the most different effects and their alternation. You can perform their settings by means of the remote control.

Important! Modern CMU is very simple in the process of installation and settings. This is the perfect solution for organizing a home party or disco.

Conclusion

There are quite a lot of schemes for independent execution of the settings of the colorwoman. You can choose a fairly simple option, where the color of RGB ribbons will simply change, up to quite complicated, which will create in the process a large number of A variety of effects, overflows and attenuation. In direct relations from the skills, you can select and perform the appropriate option. It is quite a bit to work hard and create something really unique, it will be a lighting equipment that deliberates the overflows of various color shades. Also do not forget that there is always the opportunity to buy ready decision Colorwoman and fill their house with color shades and joy.

Competition of novice radio amateurs
"My amateur construction"

Competitive design of a novice radio amateur
"Pilenthann LED color music"

Hello respected friends and guests of the site!
I present to your attention the third competitive work (the second competition of the site) of a novice radio amateur. Construction author: Morozas Igor Anatolyevich:

Pilenthanny LED color music

Hello radio amateur!

Like many newcomers, the main problem was where to start, what will my first product be. He began with I wanted to buy home first. The first is a colorwoman, the second is high high-quality amplifier For headphones. He began with the first. The colorwoman on thyristors seems to be a beaten option, I decided to collect a colorwoman for LED RGB ribbons. I give you the first job.

The color music diagram is taken from the Internet. The color music is simple, on 5 channels (one channel - white background). Each channel can be connected to the LED tape, but for its operation at the input, an amplifier of a signal is not high. The author proposes to apply the amplifier with computer speakers. I went out of the complex, collect the amplifier scheme on a datashet on the TDA2005 2x10 W chip. This power seems to me enough, even with a margin. Diligently overcame all schemes in the Splan 7.0 program

Fig.1 of the color chart with an input amplifier.

In the color music scheme, all electrolytic capacitors, 16-25V voltage. Where it is necessary to observe the polarity worth the sign "+", in other cases the change in polarity does not affect the flashing of LEDs. At least I did not notice this. CT819 transistors can be replaced by KT815. Resistors with a capacity of 0.25 watts.

In the amplifier scheme, the chip must be put on a radiator at least 100cm2. Electrolytic voltage capacitors 16-25V. Capacitors C8, C9, C12 film, voltage 63V. Resistors R6, R7 with a capacity of 1 W, the remaining 0.25W. A variable resistor R0-dual, resistance of 10-50 com.

Power supply I took the factory pulsed power 100W, 2x12V, 7A

On the weekend, as it should be a trip to the radio market for the purchase of radio components. Next task draw pCB. To do this, chose the Sprint-Layout 6.0 program. She is advised by radiospetsiars for beginners. It is easily studied, I was convinced of this.

Figure 2. Place of colorwoman.

Figure 3. Power amplifier board.

The boards made on LUT technology. About this technology a lot of information on the Internet. I like when it looks like a factory, so Lout did from the part of the details too.

Figure 3.4 Assembling radio components on the fee

Figure 5. Checking performance after assembly

As always, the most "complicated" when collecting radioshem - it is equipped with everything in the housing. Corps I bought ready-made radio car.

I did the front panel in this way. In the photoshop program painted appearance The front panel where variable resistors, switch and LEDs can be installed one by each channel. Ready Figure Printed an inkjet printer on a fine glossy photographic paper.

To the degreased cooked panel with holes stick to the joinery glue photo paper:

After that, the panel is under the so-called press. For a day. As a press, I have a pancake from the bar for 15 kg:

Final assembly:

That's what happened:

Annex to the article:

(2.9 MIB, 2,958 HITS)

Dear friends and guests of the site!

Do not forget to express your opinion on competitive work and take part in the vote for your favorite design on the site forum. Thank you.

Some suggestions for those who will repeat the design:
1. A column can be connected to such a powerful stereoxylter, then two devices in one - a color music and a high-quality low-frequency amplifier.
2. Even if the polarity of the inclusion of electrolytic capacitors in the colorwriter scheme does not affect its operation, it is probably better to observe polarity.
3. At the input of the colorwoman, it is probably better to put the input node to summarize the signals from the left and right channels (). By the author, judging by the scheme, a signal from the right channel of the amplifier is supplied to the high-frequency channel of the amplifier, and a signal from the left channel of the amplifier is supplied to the remaining color music channels, but it is probably better to give a signal to all channels from the audio signal.
4. Replacing the CT819 transistor to KT815 implies a decrease in the number of possible connecting LEDs.

The inexhaustible potential of LEDs once again revealed in the design of new and modernization of the existing color-music consoles. 30 years ago, a colorwoman was considered a peak of fashion, collected from multi-colored light bulbs by 220 volts connected to a cassette tape recorder. Now the situation has changed and the function of the tape recorder now performs any multimedia device, and instead of incandescent lamps, ultra-light LEDs are installed or lED ribbons.

The advantages of the LEDs in front of the light bulbs in the color-duty consoles are indisputable:

• wide color gamut and more rich light;
• various versions (discrete elements, modules, RGB ribbons, ruler);
• high response speed;
• low power consumption.

How to make a color music using a simple electronic circuit and force the LEDs flash from the sound frequency source? What options for converting the audio signal exist? These and other issues will consider specific examples.

The simplest scheme with one LED

To begin, it should be dealt with a simple colorwoman circuit collected on one bipolar transistor, resistor and LED. Power on it can be served from a DC source with voltage from 6 to 12 volts. This colorwoman works on one transistor on the principle of an amplifying cascade with a common emitter. The perturbing effect in the form of a signal with a changing frequency and the amplitude enters the database VT1. As soon as the amplitude of oscillations exceeds some threshold, the transistor opens and the LED flashes.

The disadvantage of this simple scheme is that the pace of flashing the LED is completely dependent on the sound signal level. In other words, a full color-colored effect will be observed only at one volume level. Reducing the volume will lead to rare winking, and an increase - to almost constant luminescence.

Scheme with monochrome LED ribbon

The simplest color music on the transistor can be assembled using LED tape in the load. To do this, it is necessary to increase the supply voltage to 12V, select the transistor with the highest current current current in excess of the load current and recalculate the resistor's denomination. Such simple color music From the LED tape perfectly suitable novice radio amateurs for assembling with their own hands even at home.

Simple three-channel scheme

Get rid of the shortcomings of the previous scheme allows a three-channel sound converter. SAMI simple scheme The color music with the separation of the audio range into three parts is shown in the figure.
It feeds on a constant voltage of 9V and can light one or two LEDs in each channel. The scheme of three independent amplifying cascades collected on KT315 transistors (CT3102), in which the different color LEDs are included. As an element for pre-amplification, you can use a small low-type network transformer.

The input signal is supplied to the secondary winding of the transformer, which performs two functions: galvanically unlock two devices and enhances the sound from linear output. Next, the signal enters three parallel filters collected on the basis of RC chains. Each of them works in a certain frequency band, which depends on the ratings of resistors and capacitors. The low-frequency filter passes sound fluctuations with a frequency of up to 300 Hz, as evidenced by the flashing of the Red LED. A sound in the range of 300-6000 Hz is passed through the average frequency filter, which is manifested in the flicker of the blue LED. The high-frequency filter passes a signal whose frequency is greater than 6000 Hz, which corresponds to the green LED. Each filter is equipped with a trimming resistor. With their help, you can specify a uniform glow of all LEDs, regardless of the musical genre. At the output of the circuit, all three filtered signals are enhanced by transistors.

If the power of the circuit is carried out from the low-voltage source of DC, the transformer can be safely replaced by a single-circuit transistor amplifier.
First, the galvanic junction loses its practical meaning. Secondly, the transformer loses several times the diagram shown in the figure, by weight, size and cost. Scheme simple amplifier Sound frequency consists of a CT3102 transistor, two capacitors that cut off the constant component, and resistors providing the transistor with a common emitter mode. Using a trim resistor, you can achieve a general gain of a weak input signal.

In the case when it is necessary to increase the signal from the microphone, the electrical microphone is connected to the input of the previous scheme, feeding the potential from the power supply. Double-stage scheme pre-amplifier Showing in the picture.
In this case, the trimming resistor stands at the output of the first amplifying cascade, which gives more opportunities to adjust the sensitivity. C1-C3 capacitors skip the useful component and cut off d.C.. For implementation, any electret microphone will suit, for the normal operation of which enough displacement is 1.5V.

Colorwoman with RGB LED Ribbon

The following color-seated console scheme operates from 12 volts and can be installed in the car. It combined the basic functions of the previously considered schematic solutions and is capable of working in color music and lamp mode.

The first mode is achieved at the expense of contactless RGB-ribbon control using a microphone, and the second - due to the simultaneous glow of the red, green and blue LEDs at full power. The selection of the mode is carried out using a switch placed on the board. Now let's stop in detail on how to make a colorwoman, which is perfectly suitable even for installation in a car, and which details will be required for this.

Structural scheme

To understand how this color-chicted console works, first consider its structural scheme. It will help trace the full way to pass the signal.
The source of the electrical signal is a microphone that converts sound oscillations from the phonogram. Because This signal is overly small, it must be enhanced using a transistor or operational amplifier. Then the automatic level controller (ARU) follows, which holds the oscillations of the sound within reasonable limits and prepares it to further process. Filters divide the signal to three components, each of which only works in one frequency range. In the end, it remains only to enhance the prepared current signal, which use transistors operating in key mode.

Schematic scheme

Based on the structural blocks, it is possible to proceed to the consideration of the schematic diagram. Its general view is shown in the figure.
To limit the current consumption and stabilization of the supply voltage, the R12 resistor and the C9 condenser are installed. To set the microphone offset voltage, R1, R2, C1 is installed. Condenser C FC is selected individually to specific model Microphone in the process of adjustment. It is necessary in order to slightly muffle the signal of the frequency that prevails in the operation of the microphone. Usually reduce the effect of the high-frequency component.

Unstable voltage of the automotive network can affect the work of the colorwoman. Therefore, the most correctly connected homemade electronic devices through a 12V stabilizer.

Sound oscillations in the microphone are converted to electric signal And through C2, the direct input of the operational amplifier DA1.1 is received. From its output, the signal should be on the operation of the operational amplifier DA1.2, equipped with a chain feedback. Resistance resistance R5, R6 and R10, R11 Set the gain of DA1.1, DA1.2 equal to 11. OS circuit elements: VD1, VD2, C4, C5, R8, R9 and VT1, together with DA1.2, are part of the ARU. At the time of occurrence of the DA1.2 output of the signal too large amplitude, the VT1 transistor opens and via C4 closes the input signal to the general wire. This leads to an instantaneous reduction in outlet voltage.

Then stabilized alternating current Sound frequency passes through the cutting capacitor C8, after which it is divided into three RC filters: R13, C10 (LF), R14, C11, C12 (SC), R15, C13 (HF). In order for the colorwoman on the LEDs of the shine, it is clear enough to enhance the output current to the appropriate value. For a tape with consumption up to 0,5A, the transistors of the CT817 type transistors or imported BD139 without installation on the radiator are suitable. If the collected light summission does with their own hands implies the load of about 1a, then the transistors will need forced cooling.

In the collectors of each output transistor (parallel to output) there are D6-D8 diodes, whose cathode are combined with each other and are displayed on the SA1 switch (WHITE LIGHT). The second switch of the switch is connected to the shared wire (GND). While SA1 is open, the scheme works in color music mode. When the switch contacts is closed, all the LEDs in the tape are ignited on the full brightness, forming a white stream of light in the amount.

PCB and assembly details

For the manufacture of the printed circuit board, you will need one-sided textolum of 50 size to 90 mm and a ready-made file.Lay that can be downloaded. For clarity, the board is shown by radio elements. Before printing, you need to set it mirror reflection. The M1 layer shows 3 jumpers placed on the part side.
For the assembly of the colorwoman from the LED tape, you will need accessible and inexpensive components. An electret type microphone is suitable in a protective housing with old audio equipment. The light music is collected on the TL072 chip in the DIP8 case. Capacitors, regardless of type, should have a supply of voltage and be designed for 16V or 25V. If necessary, the design of the board allows you to set output transistors into small radiators. From the edge, the terminal block is placed on 6 positions for power supply, connecting RGB LED tape and switch. The full list of items is given in the table. In conclusion, I would like to note that the number of output channels in a homemade color-duty console can be increased by how much it pleases. To do this, you need to split the entire frequency range on large quantity Sectors and recalculate the bandwidth of each RC filter. To the outputs of additional amplifiers, connect intermediate colors LEDs: purple, turquoise, orange. From such an improvement of the colorwoman with their own hands will be only more beautiful.

The following schemes belong to the CXEm.net site

Read the same way

We all want a holiday from time to time. Sometimes you want to sink or experience other emotions. The easiest I. effective method To achieve the desired result - listen to music. But only one music is often not enough - the visualization of the sound flow, special effects, is needed. In other words, the colorwoman needs (or light moss as it is sometimes called). But where is it to take, if such equipment in specialized stores is expensive? Make it yourself, of course. All that is needed for this is the presence of a computer (or power supply separately), several meters of LED RGB tape power consumption in 12V, Maletaya uSB board (AVR-USB-MEGA16 is perhaps the cheapest and simple variant), as well as the scheme of what and where to connect.

A little about tape

Before moving to the work itself, it is necessary to determine what this LED RGB ribbon represents the power of 12V. And it is simple, but at the same time a very clean-in invention.

LEDs are already known no longer for the first decade, but thanks to innovative developments, they became a truly universal solution for a variety of problems in the field of electronics. They are now applied everywhere - as indicators in household appliances, independently in the form of an energy-saving lamp, in the space industry, as well as in the sphere of special effects. The latter can be attributed to the colorwoman. When the three types of LEDs are red (Red), green (green) and blue (Blue) are combined on one tape, then the LED RGB ribbon is obtained. In modern RGB diodes there is a miniature controller. This allows them to emit all three colors.

A feature of such a tape is that all diodes are grouped and connected into a common chain.Guided by a common controller (they can also be a computer in case of a USB connection, or a special power supply with a control panel for autonomous modifications). All this allows you to create a practically endless tape with a minimum of wires. Its thickness can reach literally a few millimeters (if you do not consider options with rubber or silicone protection from physical damage, moisture and temperature). Before the invention of this type of microcontrollers, the simplest model had at least three wires. And the higher the functionality of such garlands - the more wires were. In Western culture, the phrase "unravel the garland" has long been nominable for all long, tedious and extremely confusing cases. And now it has ceased to be a problem (also because the LED ribbon is prudently screwed into a special small drum).

What we need?

Colorwoman do it yourself from tape GE60RGB2811C

Ideally, a ready-made LED tape with meals will be suitable for organizing the colorwoman. USB port Computer. All we need is to download the necessary application for the same computer, configure the file associations with the desired audio player, and enjoy the result. But this is if we are very lucky, and if we have money to buy all this. Otherwise, everything looks somewhat more complicated.

There are various LED tapes on the sale of electronic components in the length and power, but we need only 12V. It is the best option for connecting to a computer by usb. For example, you can find the GE60RGB2811C model, which is a series connected 300 RGB LEDs. One of the advantages of any such tape is that it can be cut as anyone convenient - any length. All you need after this is to connect the contacts to electrical circuit It was not open, and the scheme was holistic (this must be done).

Coloromusist setup circuit

We may also need a batch fee for uSB connections. The most popular, cheap, but at the same time, the functional option for the connection is the AVR-USB-MEGA16 model under USB 1.1. This version of USB is already considered to be somewhat outdated. Transmits a signal to LEDs at a speed of 8 milliseconds, which for modern techniques is too slow, but because the human eye and this speed perceives as "a blink of an eye", then it is quite suitable for us.

If you lower most of the most complex technical subtleties and nuances, then everything that requires a diagram of such a connection, it is to take the ribbon of the desired length, release and clean the contacts on one side, connect and solder them to the output on the dumping board (symbols are shown on the board itself, What connector and for what is needed) and, in fact, everything. For the full length of the tape in 12V may not be enough power, so you can power them from the old power supply of the computer (this will require a parallel connection), or just trim the tape. The sound with just this option will go from computer speakers. For highly sophisticated masters in electronics, you can recommend attaching the microphone amplifier and a small "dynamics" directly to AVR-USB-MEGA16.

Ribbon contacting diagram USB cord From smartphone

If this fee failed this fee, then the connection can be made through the LED RGB RGB 12V to USB cable from smartphone or tablet computer (Scheme for setting up the colorwoman with your own hands it allows). It is only important to make sure that the cord will give the necessary 5 watts of power. At the end of all these manipulations, we install the SLP program (or we prescribe all the steps in the TXT file if you allow you to know in programming and understand the scheme and algorithm of all actions), select the desired mode (by the number of diodes), and enjoy the work done with your own hands.

Output

The colorwoman is not the subject matter of necessity, but it makes our life much more interesting, and not only because we can now look at flashing multicolored lights, tagging and touched in the tact of your favorite melody. No, we about a friend. Having done something like with your own hands, not bought in the store, everyone will feel the tide of the strength from satisfaction inherent in every master and the Creator, and the awareness that he is also worth something. And essentially the question - the colorwoman is installed, flashes and delights the eyes with minimal expenses and the maximum pleasure - what else is needed? ..

Lighting in the kitchen of a small apartment
We select lamps for mirrors, possible options
Chandelier for the children's room in the form of an airplane

Almost every novice radio amateur, and not only, a desire arose collect a color-duty prefix or running fire to diversify listening to music in the evening or in holidays. In this article, we will talk about a simple color-music console asserted on lEDswhich is under the power to collect even a novice radio amateur.

1. The principle of action of color-duty consoles.

Work of color-music consoles ( TSP, TSMU or Sdues) Based on the frequency separation of the spectrum of the sound signal, followed by the transmission of it by separate channels low, middle and high Frequencies where each of the channels manages its source of light, the brightness of which is determined by the oscillations of the beep. The final result of the prefix is \u200b\u200bobtaining a color scheme corresponding to the playable musical product.

To get the full range of colors and maximum number Color shades in color-sheet consoles are used at least three colors:

The separation of the frequency spectrum of the sound signal occurs with LC- and RC filterswhere each filter is configured to its relatively narrow bandwidth and passes through itself only fluctuations in this area of \u200b\u200bthe audio range:

1 . Low Frequency Filter (FNH) passes fluctuations with a frequency up to 300 Hz and the color of its light source is chosen in red;
2 . Middle Frequency Filter (FSH) passes 250 - 2500 Hz and the color of its light source is chosen green or yellow;
3 . Filter of higher frequencies (FVCH) skips from 2500 Hz and above, and the color of its light source is chosen blue.

There are no fundamental rules for selecting a bandwidth or color of lamps, therefore, each radio amateur can use colors based on the features of its color perception, as well as to change the number of channels and the bandwidth.

2. Schematic diagram of the color-music console.

The figure below provides a diagram of a simple four-channel color-duty console assembly collected on LEDs. The prefix consists of an input signal amplifier, four channels and a power supply that ensures power consoles from the AC network.

Sound frequency signal is fed to contacts PC, LK and Common Connector X1, and through resistors R1 and R2. hits a variable resistor R3which is a regulator of the input level. From the average output of the variable resistor R3 Sound signal via condenser C1 and resistor R4. Enters the input of the pre-amplifier collected on the transistors VT1 and VT2.. The use of the amplifier made it possible to use the console with almost any source of the audio signal.

From the output of the amplifier, the sound signal is fed to the upper conclusions of trimmed resistors. R7,R10, R14., R18.which are loading the amplifier and performing the input signal adjustment (adjustment) function separately for each channel, and also set the required brightness of the channel LEDs. From the middle conclusions of trimming resistors, the beep enters the inputs of four channels, each of which operates in its audio band. Schematically, all channels are made equally and differ only by RC filters.

On canal higher R7.
Strip Channel Filter formed by Condenser C2. And only skips spectrum upper frequencies Sound signal. Low and average frequencies through the filter do not pass, as the resistance of the capacitor for these frequencies is large.

Passing the condenser, the upper frequency signal is detected by a diode VD1. and is fed to the transistor base VT3. A negative voltage appearing on the basis of the transistor opens it, and a group of blue LEDs HL1 — HL6.included in its collector chain ignite. And the greater the amplitude of the input signal, the stronger the transistor opens, the brighter the LEDs are lit. To limit the maximum current through the LEDs, resistors are enabled R8. and R9. In the absence of these resistors, LEDs may fail.

On canal middle Frequencies The signal is fed from the average rendering of the resistor R10.
Channel strip filter formed by contour C3R11S4.which has a significant resistance for low and higher frequencies, so the transistor base VT4. Only medium-sized fluctuations come. In the collector circuit of the transistor included LEDs HL7 – HL12. green color.

On canal low Frequencies The signal is supplied from the average output of the resistor R18..
Channel filter formed by contour C6R19S7which weakens the signals of the middle and higher frequencies and therefore on the base of the transistor VT6. Only low frequency fluctuations come. Channel load are LEDs HL19 – HL24. of red color.

For a variety of color gamut in a color-duty console added channel yellow colors. Channel filter formed by contour R15C5 and works in the frequency range closer to low frequencies. The input signal to the filter comes from the resistor R14..

Food is powered by a constant voltage 9V.. The power supply unit consoles consists of a transformer T1., diode bridge made on diodes VD5 – VD8., chicketer voltage stabilizer DA1 Type roll5, resistor R22 and two oxide capacitors C8. and C9..

AC voltage straightened by a diode bridge smoothes an oxide capacitor C8. And enters the voltage stabilizer roll5. With output 3 Microcircuits Stabilized Voltage 9V fed into the Cretefront scheme.

To obtain the output voltage 9B between the minus tire of the power supply and the output 2 Microcircuits included resistor R22. The change in the resistance of this resistor is achieved by the desired output voltage at the output. 3 chips.

3. Details.

In the console, any permanent resistors with a capacity of 0.25 - 0.125 watts can be used. The figure below shows the ratings of resistors in which colored stripes are used to indicate the resistance value:

A variable resistor R3 and trimming resistors R7, R10, R14, R18 of any type, just to suit the size of the printed circuit board. In the author's design, a domestic variable SP3-4VM type resistor was used, imported resistors of imported production.

Permanent capacitors can be of any type, and are designed for work voltage Not lower than 16 V. In the event of difficulty with the acquisition of a C7 capacitor with a capacity of 0.3 μF, it can be made up of two connected tank 0.22 μF and 0.1 μF.

Oxide capacitors C1 and C6 must have a working voltage not lower than 10 V, C9 condenser not lower than 16 V, and C8 capacitor not lower than 25 V.

Oxide capacitors C1, C6, C8 and C9 have polarityTherefore, when installing on a master or printed circuit board, it must be considered: the capacitors of Soviet production on the building indicate the positive conclusion, modern domestic and imported capacitors denote a negative conclusion.

VD1 diodes - VD4 any of the d9 series. On the case of the diode case, a color strip is applied, which determines the diode letter.

As a rectifier collected on diodes VD5 - VD8, a finished miniature is used diode bridge, designed for voltage 50V and current of at least 200 mA.

If, instead of the finished bridge, use rectaging diodes, you will have to correctly correct the printed circuit board, or the diode bridge is generally incurred beyond the main board of the console and assemble on a separate small board.

For self-assembly, the diodes bridge are taken with the same parameters as the factory bridge. Any rectifying diodes from the KD105 series, KD106, KD208, KD209, KD221, D229, KD204, KD205, 1N4001 - 1N4007 are suitable. If you use diodes from the KD209 or 1N4001 - 1N4007 series, then the bridge can be collected directly from the printed mounting side directly on the contact sites of the board.

LEDs are ordinary with yellow, red, blue and green glow. Each channel uses 6 pieces:

Transistors VT1 and VT2 from the KT361 series with any letter index.

Transistors VT3, VT4, VT5, VT6 from the KT502 series with any letter index.

Stabilizer voltage type roll5a with any letter index (imported analog 7805). If you use ninety roll8a or roll8g (import analog 7809), then the R22 resistor is not put. Instead of the resistor, a jumper is installed on the board, which connects the average output of the chip with a minus tire, or in the manufacture of the board, this resistor is not provided at all.

To connect the console with a sound source, a jack connector for three contacts is applied. The cable is taken from a computer mouse.

The power transformer is the finished or homemade power of at least 5 W with a voltage on the secondary winding 12 - 15 V with a load current 200 mA.

In addition to the article, look at the first part of the video, where the initial stage of the assembly of the color-music console is shown

On this, the first part ends.
If you are seduced make a colorwoman on LEDs, then pick the items and be sure to check the health of diodes and transistors, for example,. And in the final assembly and configuration of the color-music console.
Good luck!

Literature:
1. I. Andrianov "Consoles to radio receivers".
2. Radio 1990 №8, B. Sergeev "Simple color-music consoles".
3. Operation on the "Start" radio constructor.