Simple Headphone Amplifier
Even if simple the circuit, plirej' all condition, regarding the distortion and the response of frequency. The resistance of entry is 250K and the load that can...
Active Loudspeaker Amplifier with SKT4042
Active loudspeakers have a lot of advantages concerning simple loudspeakers that use passive components for the elements concretisation of segregation of freque...
300 Watt audio Amplifier
For many application there's no substitute for sheer power- low efficiency speakers, outdoor sound systems, or maybe you like the full flavour of the dynamic r...
60W power amplifier
?? ??????? ????? ??? ???????? ?????? ????????? ??? ???????????? TDA7294 ??????????? ??????????, ?? ???? ???? ?????????????? ??? ???. ?? ?????????? ?????? ??????...
100 Watt MOSFET Power Amplifier
One still designing that it uses in the exit transistor of technology V-mosfet. This transistors to us offer a lot of virtues concerning the simple bipolar tran...
170 Watt audio amplifier
In the drawing he appear simple but powerful power amplifier. His difference with the classic designings, that use differential amplifier in their input, they ...
Audio amplifier 2X18W
In a lot of cars, the car-radios use amplifiers that their output power does not exceed the 5W with enough distortion in the limits of power. The problem is u...
60W audio amplifier
In the circuit exist a simple power amplifier 60W in the 8 ohm and 80W in the 4 ohm, with components that sure exist in big quantities. It can be used in home...
5 Watt audio amplifier
The amplifier of circuit, use negative current feedback. So, the load current depends mainly from the input signal and no so much from the impedance of loudspe...
Leach amplifier
A hot topic of amplifier design in the 1970s was "transient intermodulation distortion" (TIM). Other names which were used for this phenomenon were "slewing ind...
100W FM Linear Amplifier
This Power amplifier is equiped with a bipolar transistor,the famous MRF317. As lots of FM amplifier application ,the power transistor is in a C class bias. All...
DC-10Mhz Amplifier for Oscilloscope
The DC-10 MHz amplifier shown below is identical for both scope channels. The input FET should be mounted directly on the adjustable attenuator switch for best ...
Vertical Deflection Amplifier for Oscilloscope
The vertical deflection amplifier uses a 180 degree phase splitter to generate a differential signal. The CRT requires large drive voltages, but almost no curre...
Horizontal Deflection Amplifier for Oscilloscope
The circuit below provides the horizontal drive voltage. The supply voltage on one end, +135 to +165, is made variable for the horizontal position control....
How to design A class amplifier
Feedback - This is where part of the output signal is fedback to the input BUT 180o out-of-phase (i.e. partially cancels the input). If it were in-phase feedbac...
Signal Amplifier with 2N2222
A small signal amplifier, perhaps of the type to follow the previous buffer amplifier. We will assume we are buffering and amplifying our signal from the voltag...
30 Watt FM Linear amplifier with Mosfet BLF245
The achievement of this 30 watt amp was thought to take place on a heatsink microprocessor PC. Equipped with its fans, the advantage of this method of cooling w...
Small LM386 Amplifier
This is one of my favorites. The LM386 is a low voltage audio power amplifier. It can provide 125mW to 750mW, enough for any project that uses audio. This circu...
FM band amplifier 10dB
A Selective Amplifier 10dB for FM/VHF region. Note that some devices to be used SMD components and may have a minimum sales volume. Device works very well as an...
Audio / Video Distribution Amplifier
With the amount of equipment in home entertainment centers today the need to be able to vary the gain of the audio or video signal is needed. I found this parti...