Small amplifier TDA7377 of 15W + 15W + 30W in 4 ohms At the request of our followers, we have developed an amplifier with the following characteristics: The TDA7377 is the main component. It has 4 outputs that can deliver a power of 15W each. we distribute them as follows: First, we have 2 outputs…
Many times we have been asked about an amplifier that can be powered with the computer source to amplify this. We have also seen the need for an amplifier that can be transportable everywhere and that provides an acceptable power service. Thinking about filling these expectations, we present a 20W stereo amplifier (10W per channel)…
The amplifier uses a hybrid two-channel IC STK4241-II manufactured by SANYO. Immediately, it is worth noting that the pinout of the STK4241 is compatible with such chips as the STK4201V-series (THD = 0.08%) and the STK4141-series (THD = 0.02%). In the archive for download you will find 5 technical descriptions (DATASHEET) on STK4201, STK4211, STK4221,…
The output transistors MJL21194 are of great power and performance. They must be very well adjusted with through screws, washers and nuts and properly insulated from the heatsink with mica insulators. Remember to use silicone grease and tighten the screws very well, so that the heat is transmitted from the transistors to the heatsink. After…
Making an Amplifier is sometimes very challenging in the Amplifier. It is important for us to use easy-to-process material for the amplifier box, because the indicator, fan and so on. In order to have a fine workmanship for the sections, there is usually no equipment and materials suitable for these jobs in the amateur workshop.…
Previously shared RMS 250W auto amplifier JBL filter SMPS EI35 SG3525 project is similar to the PCB design is a very regular auto amplifier circuit. You can use 2x100w rms stereo or 200w rms mono, which can be controlled by bridge connection as well as bass control with cross over circuit with adjustable TL072P op…
The edited versions of the Holy Holton AVXXX series amplifier circuits are of high quality PCB designs. The power transistors of the 400W Amplifier circuit are BJT 2SC5200, 2SA1943, or Mosfet IRFP240, IRFP9240 can be used for this and will change materials for use. Supply voltage symmetrical + -80V DC pcb, schematic, material list etc.…
A simple all-in-one TBA820M from the past that many of you know and experience. Despite its small size, it accomplishes great work from its height according to its time, its price is cheap, the area it covers is small and its working tension is quite flexible. I have tried to make the two circuit boards…
The modified C-Class Sixteen model of the Harman card company in 1976 is able to deliver 400 watts of power through a 4-ohm speaker with an AB class Amplifier circuit . The power transistors 2SC5200 and 2SA1943 use the TL072 opamp in the 400w anfi circuit. The OPA2134 opamp is said to be of better…
For a long time I was going to share with you the materials on assembling a transistor amplifier with unipolar power, assembled in retro-topology, which is still of interest to some radio amateurs. At the forum Diyaudio this ULF can be found under the name APEXAX6. This circuit does not need DC Protect, because the…