Sunday, September 25, 2016

Advantages and Disadvantages OF Circuit AMPLIFIER OCL

Advantages and Disadvantages OF AMPLIFIER OCL Circuit
Many people use this type of amplifier because there are many advantages in comparison with amplifiers using IC (Integrated Circuit). But in fact almost the same sound quality, and even the risk of damage greater use OCL amplifier. In the process of assembling an amplifier of this type is very delicate high level if we're wrong little would be fatal for the other components, especially on the power. 

Other disadvantages of this type of amplifier should use sufficient cooling, especially the cooling material should really be able to absorb the heat generated from the transistor and would be better if given additional cooling as the fan mini. To maximize the cooling process should be toward the cooling breezes of the transistor directly so that the transistor is not easily damaged.

Excess amplifier types OCL is the outcome harder to make chest tightness. but it would be even better result if it is supported by means of manufacturing / assembly speaker box.

Besides being supported by a great resonance box, it would be great if supported by quality in good subwoofer. If you want to get the sound to your taste spull speakers you can replace yourself with your own assemblies, but the way the installation is also to be really precise. For those of you who are beginners should have to be careful in the process of assembling amplifier types OCL is because in addition to using three (3) flow, but sometimes tone control using two (2) current that can outwit us at the time of assembly, the more so if you use a transformer double. Another advantage of OCL amplifier manifold greater output and maximum compared to the others. 

Tips for those who are beginners: make sure the flow is properly installed, meticulous in seeing the symbol, not until there is a tool that attaches to cause surge currents, although in seconds the result is fatal and you have to buy a new component, do occasionally using components that have been used because of problems will arise little by little from components that have been used since to check the surge transistor that has been very difficult, it looks still good but because it has the characteristics it will quickly be easily damaged and could result in all the components were damaged.

TDA2030 For Active Speaker Super Bass

For those of you who want to have an active speaker super bass.  Although it is small but can put out powerful bass sound. However, if the financial condition of our rather dry so we try to make ourselves, but do not forget to wear a rule in the manufacture of boxes speaker. Active speaker TDA2030 For Active Speaker Super Bass is indeed small, but the results are amazing.

If only for home theater or home amplifier within the scope of this circuit can make quite a bass voice boomed. For this circuit you can see in the picture below:
TDA2030 For Active Speaker Super Bass

The speakers are used actually wear watt and impedance is small and power amp output is also small, but because it is supported by the rule-making cribs salon is right then the result is quite satisfactory

Guitar power amplifier circuit

This the guitar power amplifier circuit, using a single-rail power supply of about 60V and capacitor-coupling to the speaker (s). The advantage to the guitar amplifier circuit is very simple, even for relatively high power output, and certain built-in loudspeaker protection level, because the capacitor C8, preventing the supply voltage to be delivered to the speaker in terms of output transistors' failures. 
Guitar power amplifier circuit schematic :
Guitar power amplifier circuit schematic

The preamp is powered by a 60V rails same as power amplifier, which makes it possible to apply a two-transistor gain-blocks are able to provide about 20V RMS output. This provides the ability to excessive input is very high.

Saturday, September 24, 2016

Power Amplifier Super OCL 500W Circuit

This amplifier Super OCL 500watt rms with a maximum power supply voltage at the load 45vct 2x speakers. PA3600w on par with other assemblies amplifier.

Power Amplifier Super OCL 500W

SOCL 500 Watt

Circuit Schematic Super OCL 500W
SOCL 500 Watt circuit scheamatic

Power Amplifier Using
Inside and outside the room

Power supply ...
Transformer with a current strength of at least half of the nominal voltage, to compensate for a 4 ohm load 2x (4x speakers) such as stereo amplifiers professional standards, eg transformer 40Vct 20Amper. 40vct minimum supply voltage, if rectified would be more than 50vdc, transitor-power transistors will release energy (more life) if disuply with 50Vdc voltage (40vct = vac).

Speaker...
2x 500watt (12 ", 15") per mono block amplifier, speaker total 4 units to 1 stereo amplifier.
It is advisable to use a 500W powered speakers (12 ", 15") as much as possible,
is more effective in improving the gain of using a large speaker> 1.000Watt (18 ", 21") with the least amount.

Tansistor Final ...
Suggested use Sanken series 3 sets.
Too many final transistors without increasing the power supply transformer can weaken the thump of the bass and the sound is less stable, hoarse etc.

Carefully series Sanken many forgeries, for example Sanken 2SC2922-5DY (quality is unstable and does not correspond to the price). Transistor driver must also be original! If there is a problem such as a hoarse result, resistor 300 burning, etc. This may be because the component FALSE.

Resistors and capacitors do not really matter. The problem is electrolytic capacitors, Elko. Sorry average Elko Rubycon / marcon / Nichicon (original) is less suitable to be applied here, because he is more suitable work in the dc current, which is suitable for this is Elko brand nippon Chemicon (not all), and Elko another stable job at audio frequencies /air conditioning.

Almost all the native power amplifier assemblies only 500watt theoretically and practically
on paper and table test, but in the power of music power is transferred to the speaker only a few dozen watts! Proof: cool heatsink / no heat, sound is loud. Adjust the power speakers with a power amplifier used!

Characters and features:

  • Hifi fullrange with bass gain 2 ~ 4 times the usual amplifier. Effective for the production of such bas-class amplifier h & BTL.
  • Speaker leaves more stable, not too advanced and not too far back even if exposed to shocks bass, speakers and power transitror expectations more durable.
  • The values ​​of the components are set such that the power transformer is more efficient. Power transformer is not wasted, not turned into drone / wild signal / oscillation, etc.
  • Sound can travel long distances in the field due to consider the Doppler effect.
  • With the installation of the transformer model 2 below (test 2013), does not make the slightest hp signal when no sms / incoming call even though hp kept above the transformer, is one of the features, amplifier built-up not necessarily.


SOCL version ONSEMI TO-3:
To endure the speakers up to 4 units / ch,
Power Amplifier Super OCL 500W kit

Power Amplifier Super OCL 500W transistor final

Audio Low Pass Filter LM324

This is circuit schematic of audio low pass filter. By using this circuit for audio can  filtering just low output frequency. Based on IC LM324 for filtering audio signal input to low frequency output. Power Supply need 9V up to 15V DC. Using DC Regulated power supply for more effieciency audio filtering and more low noise output.

This is circuit schematic of Audio Low Pass Filter LM324

Audio Low Pass Filter LM324
If you have EasyEDA account visit here https://easyeda.com/editor#id=V9z9OldYB you can see schematic clearly and you can edit it.

Friday, September 23, 2016

1000W Mosfet Power Inverter Circuit

This 1000W Mosfet Power Inverter  motivation provide a very unwavering “settle Wave” Output Voltage. Frequency of process is indomitable by a pot and is normally fix to 60 Hz. Various “rotten the shelf” transformers can be there used. or else Custom wind your own on behalf of top results.

1000W Mosfet Power Inverter  circuit schematic
1000W Mosfet Power Inverter 
Further MosFets can be paralleled for senior power. It is recommended to encompass a “Fuse” appearing in the Power Line and to continually have a “Load connected”, while power is being useful. The Fuse must be situated rated by the side of 32 volts and must be aproximately 10 Amps for each 100 watts of output. The Power leads be required to be extreme sufficient wire to control this prohibitive Current take! appropriate ardor Sinks ought to be used on the RFP50N06 Fets. These Fets are rated on 50 Amps and 60 Volts. Other types of Mosfets can survive substituted if you desire.

here ARE Limitations! I get had numerous desires in favor of an Inverter for 1000 watts and Even supplementary. regretful I Don’t feel this is sound. by 1000 Watts and operating from a 12 Volt Source, the Input Current wish befall close to 100 AMPS. with the intention of would Require a HUGH Size of a Primary Wire.


Multi-channel audio systems

Multi-channel Audio
Multi-channel audio systems are widely used within novel sound campaign. The word “multi-channel audio” process with the intention of, the audio method can transpire accomplished of conduct multiple audio channels (more often than not called audio tracks) to rebuild the sound on a multi-loudspeaker setup.

Usually two digits separated by a decimal (.) end (2.1, 4.1, 5.1, 6.1, 7.1, and the rest.) are used to classify the various kinds of orator fix-up, this total basically depending on how many audio tracks are used. about audio systems solitary suffer a single channel (called monophonic sound otherwise single channel audio) or two channels (stereophonic sound or else 2.0 channel sound)
The initial numeral shows the quantity of primary channels (called satellite units), both of which are reproduced on a single presenter (these speakers are accomplished in place of use the frequency range from 100Hz to 22Khz), while the back up (decimal figure) refers to the presence of LFE (Low Frequency Effect), which is reproduced on a subwoofer.

Multi-channel audio systems

7.1 Channel audio Surround Sound systems

7.1 Surround Sound Systems
7.1 channel audio systems is the modified version of 6.1 channel and plus provide additional realistic experience than 6.1 setup. at home this organization splits the single rear-hub amp into private not here- and moral-rear surround. These systems are not a stanch discrete 7.1 channel system to the same degree 7.1 formats don’t at this time exist. In a true discrete 6.1 surround method, the back center surround attitude is separate from the surround not here (SL) and surround right (SR) positions. A 7.1 channel system uses   matrixes extended surround wherever the not here-back and right-back (rear-inside surround) multichannel are blended at once and stored. The assembly of a 7.1 setup is agreed voguish the Picture under.

7.1 Channel audio Surround Sound systems
7.1 Channel audio Surround Sound system

10.2 Surround Sound Systems

10.2 channel surround is the yet to come surround sound machinery so as to residential by THX corporation, the pet name itself, 10.2 is an cutting edge version of 5.1 tools but 10.2 is twice like mild as 5.1. concerning a 10.2 surround sound 14 channels are used. This includes five front speakers, five surround channels, two LFE and two heights, plus the addition of a instant associate-woofer. This equipment is considered as impending TRUEHD.The Diagram of a 10.2 TrueHD setup is publicized less than.

10.2 Surround Sound Systems
10.2 Surround Sound Systems

Thursday, September 22, 2016

"Tesseract" DIY Guitar Practice Amplifier is an LM386 - EasyEDA


Tesseract Guitar Practice Amp PCB
The EasyEDA "Tesseract" DIY Guitar Practice Amplifier is an LM386 based low power amplifier designed to deliver up to about 500mW into an
8 Ohm speaker when run from a 9V battery.
Tesseract can be heard on YouTube here:
The design given here - which includes a complete PCB design and Bill of Materials - is highly flexible and allows the several options in both the build and use of the amplifier.
As well as a clipping circuit that some other designs - such as the more well known Smokey, Little Gem, Ruby and Noisy Cricket - have incorporated, Tesseract has several unique effects features designed into it:
  • Selectable Bipolar or Junction FET input stage for different input overload effects;
  • Adjustable gain and clipping 'hardness' in the Distortion stage;
  • An adjustable fullwave rectifier stage, driven by the distortion output, that generates a type of fuzz and frequency doubling effect called 'Wreckage';
  • An optional low frequency oscillator stage to sweep the Wreckage effect;
  • A simple mixer to blend the 'Wrecked' and the 'Distortion' outputs;
  • Selectable, adjustable low or high frequency boost (a type of tone control);
  • An important aspect of the design is that all the features and FX can be tweaked for your delight and delectation.
  • Most features are also optional and can be wire linked out if not required without affecting the other functions.
  • The design could easily be modified to suit the LM380 2.5W or LM384 5W amplifier chips (although the Boost function would have to be omitted) or a range of other devices.
  • The design also includes a headphone output jack.
  • The PCB includes dual footprinting to simplify the choice of some of the components.
  • All parts (excluding the PCB) are available from: http://www.bitsbox.co.uk/
    (Bitsbox can also supply suitable small switches, loudspeakers and battery holders or clips.)
    An alternative for J1 as an MPF102 is available from:http://www.tandyonline.co.uk/components/semiconductors/transistors/mpf102-jfet.html
  • Simulations of the different stages of this amplifier - and a copy of the EasyEDA LM386EE spice model used in them - can be found here:
To order Tesseract PCBs direct from EasyEDA
Sign up for a free account at:
then click on 'Fork' or 'Open in Editor' in the upper right of this page and then click on theFabrication Output... button on the top toolbar of the PCB layout tab: https://easyeda.com/editor/20150921/55fedb38c046a.png
Then click on the Save To Cart button on the Add To Cart page: https://easyeda.com/editor/20150921/55fedd63a9390.png
To download Gerbers for 3rd party PCB fabrication
Click on 'Open in Editor' in the upper right of this page and then click on the Fabrication Output...button on the top toolbar of the PCB layout tab:
Then click on the Download Gerber Files button on the Add To Cart page:
  • Please note that this project is subject to the CC-BY-NC-SA 3.0 license. For more information please see:

Tesseract Guitar Practice Amp PCB

Tesseract Guitar Practice Amp PCB