http://xtronic.org Transmitter power amplifier schematic electronics stereo circuit diagram, schematic power supply circuit Mon, 30 Apr 2012 05:33:47 +0000 en hourly 1 http://xtronic.org/circuit/amplifier/stereo-audio-amplifier-using-ic-lm386/ http://xtronic.org/circuit/amplifier/stereo-audio-amplifier-using-ic-lm386/#comments Tue, 17 Apr 2012 04:31:52 +0000 Toni http://xtronic.org/?p=1682 This is an audio amplifier using two National Semiconductor LM386 (Texas Instruments). Basically this involves the use of two amplifiers as posted on another item with a time ago. However this time includes the printed circuit board for stereo version, and power supply. The circuit operates power supply or batteries 6-12 volts. The yield is [...]

]]> http://xtronic.org/circuit/amplifier/stereo-audio-amplifier-using-ic-lm386/feed/ 0 http://xtronic.org/circuit/amplifier/stereo-preamplifier-tone-control-bass-treble-balance-loudness-volume/ http://xtronic.org/circuit/amplifier/stereo-preamplifier-tone-control-bass-treble-balance-loudness-volume/#comments Wed, 28 Mar 2012 06:30:02 +0000 Toni http://xtronic.org/?p=1639 Stereo preamplifier circuit based on the Integrated Circuit TDA1524A. Contains components for amplification and pre Tone controlling. The signal processing is done by the voltage controlled TDA1524A. This manufactured by Philips IC (NXP) Semiconductors, allows for tone control voltage and can be used in more complex designs using microcontrollers. Here we use linear potentiometers to control [...]

]]> http://xtronic.org/circuit/amplifier/stereo-preamplifier-tone-control-bass-treble-balance-loudness-volume/feed/ 0 http://xtronic.org/circuit/amplifier/audio-power-amplifier-subwoofer-ne5532-tda2030/ http://xtronic.org/circuit/amplifier/audio-power-amplifier-subwoofer-ne5532-tda2030/#comments Fri, 16 Mar 2012 05:42:21 +0000 Toni http://xtronic.org/?p=1577 This circuit is typical of systems sold for 2.1 PC surround systems, left and right channel and subwoofer. Just plugging in the stereo audio and adjust the volume Audio amplifier circuit using integrated TDA2030 and op amp Ne5532, has two stereo amplifier left and right satellite and Bass amplifier using TDA2030 in bridge for more [...]

]]> http://xtronic.org/circuit/amplifier/audio-power-amplifier-subwoofer-ne5532-tda2030/feed/ 2 http://xtronic.org/circuit/amplifier/circuit-power-amplifier-stereo-audio-chip-lm1875-20-watt-power-supply/ http://xtronic.org/circuit/amplifier/circuit-power-amplifier-stereo-audio-chip-lm1875-20-watt-power-supply/#comments Sat, 17 Dec 2011 04:57:07 +0000 Toni http://xtronic.org/?p=1556 This is an audio amplifier circuit using integrated LM1875 stereo to 2 x 20 Watts. With power supply for ease of assembly for any hobbyist. With a power of up to 20 Watts stereo amplifier that is suitable for use as power audio amplifier in various applications such as power amplifier for PC audio, FM [...]

]]> http://xtronic.org/circuit/amplifier/circuit-power-amplifier-stereo-audio-chip-lm1875-20-watt-power-supply/feed/ 2 http://xtronic.org/circuit/amplifier/power-audio-amplifier-tda7293-dmos/ http://xtronic.org/circuit/amplifier/power-audio-amplifier-tda7293-dmos/#comments Thu, 10 Nov 2011 04:55:56 +0000 Toni http://xtronic.org/?p=1514 Power amplifier using the TDA7293 chip manufactured by ST Microelectronics, includes schematic and pcb design for easy mounting of the power amplifier. The TDA7293 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Top-class TV). Thanks to the wide [...]

]]> http://xtronic.org/circuit/amplifier/power-audio-amplifier-tda7293-dmos/feed/ 5 http://xtronic.org/circuit/amplifier/download-collection-of-circuits-tubes-audio-amplifiers/ http://xtronic.org/circuit/amplifier/download-collection-of-circuits-tubes-audio-amplifiers/#comments Sat, 17 Sep 2011 02:51:03 +0000 Toni http://xtronic.org/?p=1454 This is a PDF in English published in 1947 and features 45 complete schemes of tube amps, including diagram drawing material list and description of operation. Ideal for anyone interested in old amplifiers (Vintage) and the supporters as well as a modern valve amplifier. The power of the circuits presented in the book ranges from [...]

]]> http://xtronic.org/circuit/amplifier/download-collection-of-circuits-tubes-audio-amplifiers/feed/ 2 http://xtronic.org/circuit/amplifier/circuit-audio-preamplifier-bc549-transistor-pcbs-volume-control/ http://xtronic.org/circuit/amplifier/circuit-audio-preamplifier-bc549-transistor-pcbs-volume-control/#comments Tue, 23 Aug 2011 22:36:37 +0000 Toni http://xtronic.org/?p=1446 This simple circuit can be used to boost the signal sources that are not able to excite your amplifier, or from entering your PC, such as microphones for low and medium impedance, sound-heads, guitar pickups, guitar, etc.. The circuit is very simple and compact and can even be installed inside the signal source, should be [...]

]]> http://xtronic.org/circuit/amplifier/circuit-audio-preamplifier-bc549-transistor-pcbs-volume-control/feed/ 0 http://xtronic.org/circuit/amplifier/operational-amplifier-video-tutorial-and-super-microphone-circuit-with-lm324/ http://xtronic.org/circuit/amplifier/operational-amplifier-video-tutorial-and-super-microphone-circuit-with-lm324/#comments Sun, 31 Jul 2011 07:10:57 +0000 Toni http://xtronic.org/?p=1403 Afroman goes over the basics of how to use an operational amplifier to amplify tiny voltages, and builds a circuit to listen to very faint sounds with a microphone. For more information about amplifiers, Google “inverting amplifier” “non-inverting amplifier” “instrumentation amplifier” “class A amplifier” “class B amplifier” “class AB amplifier” and that should give you [...]

]]> http://xtronic.org/circuit/amplifier/operational-amplifier-video-tutorial-and-super-microphone-circuit-with-lm324/feed/ 3 http://xtronic.org/circuit/amplifier/brutus-circuit-audio-power-amplifier-stereo-tda7294-bridge-170-300-watts/ http://xtronic.org/circuit/amplifier/brutus-circuit-audio-power-amplifier-stereo-tda7294-bridge-170-300-watts/#comments Fri, 29 Jul 2011 23:03:04 +0000 Toni http://xtronic.org/?p=1417 The circuit of the amplifier with TDA7294 was a big hit among our readers, so bring more than this version of the amplifier with TDA 7294 “Brutus,” this is an application bridge to the tda7294 that can provide up to 170 Watts @ 8ohms, 38 VDC. The integrated circuit TDA7294 developed by SGS Thompson (www.st.com), [...]

]]> http://xtronic.org/circuit/amplifier/brutus-circuit-audio-power-amplifier-stereo-tda7294-bridge-170-300-watts/feed/ 17 http://xtronic.org/circuit/amplifier/download-application-note-31-op-amp-circuit-collection-national-semiconductors/ http://xtronic.org/circuit/amplifier/download-application-note-31-op-amp-circuit-collection-national-semiconductors/#comments Thu, 23 Jun 2011 16:09:24 +0000 Toni http://xtronic.org/?p=1300 This Application Note (Application Note 31). He has a huge amount of practical circuits using operational amplifiers. They are 33 pages of practical circuits that can be very useful for all who work with operational amplifiers. Complete circuit list Op Amp Circuit Collection free Section 1—Basic Circuits Inverting Amplifier Non-Inverting Amplifier Difference Amplifier Inverting Summing [...]

]]> http://xtronic.org/circuit/amplifier/download-application-note-31-op-amp-circuit-collection-national-semiconductors/feed/ 0 http://xtronic.org/circuit/amplifier/handbook-operational-amplifier-applications/ http://xtronic.org/circuit/amplifier/handbook-operational-amplifier-applications/#comments Wed, 22 Jun 2011 16:15:27 +0000 Toni http://xtronic.org/?p=1297 The purpose of this handbook is to provide a single source of information covering the proper design of circuits employing the versatile modem operational amplifier. This manual will be helpful to the experienced user of operational amplifiers, as well as the new user, in extending the range of potential applications in which these devices can [...]

]]> http://xtronic.org/circuit/amplifier/handbook-operational-amplifier-applications/feed/ 0 http://xtronic.org/circuit/amplifier/audio-amplifier-circuit-tda1562-70-w-high-ef%ef%ac%81ciency/ http://xtronic.org/circuit/amplifier/audio-amplifier-circuit-tda1562-70-w-high-ef%ef%ac%81ciency/#comments Sat, 18 Jun 2011 04:15:50 +0000 Toni http://xtronic.org/?p=1283 General description The TDA1562 is a monolithic integrated 70 W/4Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17 lead DIL-bent-SIL plastic power package. The device can be used for car audio systems (e.g. car radios and boosters) as well as mains fed applications (e.g. midi/mini audio combinations and TV sound). FEATURES of [...]

]]> http://xtronic.org/circuit/amplifier/audio-amplifier-circuit-tda1562-70-w-high-ef%ef%ac%81ciency/feed/ 3 http://xtronic.org/circuit/amplifier/circuit-audio-amplifier-stereo-lm1875-preamp-ne5532/ http://xtronic.org/circuit/amplifier/circuit-audio-amplifier-stereo-lm1875-preamp-ne5532/#comments Wed, 15 Jun 2011 05:49:03 +0000 Toni http://xtronic.org/?p=1269 The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications. The LM1875 delivers 20 watts into a 4Ω or 8Ω load on ±25V supplies. Using an 8Ω load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with [...]

]]> http://xtronic.org/circuit/amplifier/circuit-audio-amplifier-stereo-lm1875-preamp-ne5532/feed/ 11 http://xtronic.org/circuit/amplifier/wideband-dtv-uhf-antenna-tv-amplifier-circuit/ http://xtronic.org/circuit/amplifier/wideband-dtv-uhf-antenna-tv-amplifier-circuit/#comments Tue, 31 May 2011 05:34:44 +0000 Toni http://xtronic.org/?p=1257 This HD TV UHF wideband amplifier(Ultra High Frequency amplifier) has a total gain of 10 to 15 dB in the 400 – 850 MHz domain frequency so it can be used where the tv signal is weak. For this UHF antenna tv amplifier to work correctly you need to cut the components pins as short [...]

]]> http://xtronic.org/circuit/amplifier/wideband-dtv-uhf-antenna-tv-amplifier-circuit/feed/ 1 http://xtronic.org/circuit/amplifier/circuit-power-audio-amplifier-with-tda2030-2-1/ http://xtronic.org/circuit/amplifier/circuit-power-audio-amplifier-with-tda2030-2-1/#comments Wed, 25 May 2011 16:03:52 +0000 Toni http://xtronic.org/?p=1246 This circuit is a complete application is 2.1 amp, two satellite speakers for TDA and one for the subwoofer, making the 2.1 system, widely used in commercial applications as an amplifier for computers, which may give an increased in its audio system with a stereo amplifier + bass amplifier (subwoofer). Description of the amplifier circuit [...]

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