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Hello ! in this post I will show a small amplifier using integrated circuit TDA2004 get two outputs 10 watts , the circuit is very simple , if you want to change the circuit , or a mono version refer to the datasheet tda2004 ! The circuit is powered by source between 12 and 15 volts with a current of 1.5 Amperes.   See the figure below :

This is the simple 10 Mhz universal counter Circuit Diagram. The ICM7216A or can be used as a minimum component complete Universal Counter.   10 Mhz universal counter Circuit Diagram   This circuit can use input frequencies up to 10 MHz at INPUT A and 2 MHz at INPUT B. If the signal at INPUT A has a very low duty cycle it may be necessary to use a 74121 monostable multivibrator or similar circuit, to stretch the input pulse width to be able to guarantee that it is at least 50 ns in duration.

Applications of 555 timer IC is very diverse, one series of 10 Minute Timer with IC 555. 10 Minute Timer This circuit uses IC NE555 is set as a monostable multivibrator. The timing of the timer circuit 10 minutes with the IC 555 is governed by the configuration of C2, R4 and R5. The greater the value of C2 at 10-minute timer circuit with IC 555 timer is active then the time will stay longer.  Total resistance value between R4 and R5 also determine the active circuit 10 minute timer with IC 555, where the greater the value the longer time was also active. The core active setting the timer on the set of C2 charging time for 10 minutes on the timer circuit with IC 555. So, with the value of C2 remain so with time on the circuit timing Timer 10 minutes by IC 555 can be set by changing the resistance value R 4 + R 5. Indicators of active timer at 10 minute timer circuit with IC 555 uses the LED D2 and D3 will light up only one course to identify the active timer and the timer has not be...

One of the most feature packed devices on the market at the moment is no doubt the Samsung Galaxy S3. However thanks to the fact that it comes with so many features, it can be possible to miss some. So here we show you 10 the features that you might not know existed on your Samsung Galaxy S3. Samsung Galaxy S3 hidden features roundup (Part 4) If you chose the Samsung Galaxy S3 due to its large display and you are not technically minded then you might be happy to know you can choose to activate an easy UI mode on your device. This means that you will have large pre-set widgets and a simplified setup. All you have to do to get the mode is go into settings and choose the home screen mode. When you are in contacts you can easily call or text people by swiping. All you have to do is swipe left to right if you want to call someone or right to left if you want to text someone. If you want to save battery you can use the power saving feature. This mode will change many aspects on your phone, i...

I have built this amplifier and it does sound good. It requires a preamp as it hasn't got much gain. It requires big heat sinks and a large transformer and a great power supply and careful wiring, but in the end it is xtremely simple and it sounds very good. The zener diode rejects any ripple coming from the power supply, But you still only want a ripple of 10mV max. The ripple reaching the input is amplified, so the zener diode gets rid of that, but whatever ripple there is will still reach the power stage.  10 to 14W Class A Audio Amplifier Circuit Diagram

General Description: The TDA 2003 hasimproved performancewith the  same pin configuration as the TDA 2002.  The additional features of TDA 2002, very low  numberof externalcomponents,ease of assembly,  space and cost saving, are maintained.  Thedeviceprovidesa high outputcurrentcapability  (up to 3.5A) very low harmonic and cross-over  distortion.  Completely safe operation is guaranteed due to  protectionagainst DCand ACshort circuit between  all pins and ground,thermal over-range,load dump  voltage surge up to 40V and fortuitous open  ground. Circuit Diagram: Circuit diagram for 10 Watt car radio audio amplifier Datasheet for TDA2003:  Download

For a collector follower with emitter resistor, you’ll often find that the gain per stage is no more than 10 to 50 times. The gain increases when the emitter resistor is omitted. Unfortunately, the distortion also increases. With a ubiquitous transistor such as the BC547B, the gain of the transistor is roughly equal to 40 times the collector current (Ic), provided the collector current is less than a few milliamps. This value is in theory equal to the expression q/KT, where q is the charge of the electron, K is Boltzmann’s constant and T is the temperature in Kelvin. For simplicity, and assuming room temperature, we round this value to 40. For a single stage amplifier circuit with grounded emitter it holds that the gain Uout /Uin (for AC voltage) is in theory equal to SRc. As we observed before, the slope S is about 40Ic. From this follows that the gain is approximately equal to 40I cRc. What does this mean? In the first instance this leads to a very practical rule of thumb: that gai...

This is the simple Ic 555 Based 10 Note Sound Synthesizer Circuit Diagram. As shown, three ICs are used to produce the sounds. ICl is a 555 timer that generates clock pulses. It is configured as an astable multivibrator. The frequency of the clock pulses is set by trim: mer potentiometer PI. These clock pulses are coupled to the input of IC3 (a 4017 CMOS Johnson counter) on its clock input pin 14.   Ic 555 Based 10 Note Sound Synthesizer Circuit Diagram Each clock pulse causes IC3 to shift a high to each of its output pins in sequence. A trimmer resistor, which can be adjusted to set a different frequency for each note, is connected to each of IC3`s output pins. One side of each of the trimmers is connected to pin 5 (the control voltage pin) of IC2. IC2, another 555 timer IC, creates the tone; the overall pitch of the tone can be varied by P2.  As the output sequences from the 4017, that tone, which is changed in frequency by each output shift is applied to a small speake...