Amplifier

Microsemi Corporation has announced production of its LX5537 power amplifier for IEEE 802.16e WiMAX and WiBro 4G wireless applications using the 2.3 GHz to 2.9 GHz frequency range.

As collect power amplifier hifi circuit come to many the circuit. Today I begs for to advise the circuit that uses IGB be important equipment. And still give tall drive arrives at 140W interesting good. This circuit still very bias keep well be amp class AB. At power shape the loud sound is excellent. Use [...]

A compact audio powerhouse ideal for guitar or PA work or for use as a general-purpose subwoofer or hifi amplifier. Many people prefer Mosfets because of their legendary ruggedness. Altronics had a Mosfet amplifier module which produced 200W into a 4 Ohm load and so we decided to take a look it. It turned out [...]

Can be directly connected to CD players, tuners and tape recorders. Do not exceed 23 + 23V supply. Q3 and Q4 must be mounted on heatsink. D1 must be in thermal contact with Q1. Quiescent current (best measured with an Avo-meter in series with Q3 Emitter) is not critical. Adjust R3 to read a current [...]

The neat thing about the series 5000 is that it was built around new (at the time) Hitachi lateral power MOSFETs. Most power MOSFETs (VMOS, trenchFETs, HexFETs etc) use a vertical structure, where the current flows vertically. This has the advantage of stunningly low Rds and hence high efficiency, but does nothing for linearity or [...]

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 extremely simple and it sounds very good. The zener diode rejects any [...]

This is an improved version of headphone amplifier I’ve built many years ago. I wanted so much to share it with you because this simple circuit has done a great service to me through all these years. It is very simple and reliable, hard to break, offers a lot of power, excellent sound quality, it [...]

This is a simple and low cost 60W power amplifier. The optimal supply voltage is around 50V, but this amp can work from 30 to 60V. The maximum input voltage is around 0.8 - 1V. As you can see, in this design the components have a big tolerance, so you can build it with almost [...]

The Boss D1200M MOSFET Monoblock Power Amplifier with Remote Subwoofer Level Control Max Power 2 ohms 1200w x 1, RMS Power 4 ohms 280w x 1, Max Bridged Power 4 ohms -N/ASignal-to-Noise Ratio > 105dB, THD 0.01%Dimensions: 11 inch W x 2-5/16 inch H x 9-5/16 inch LInput sensitivity selector, and variable subsonic filter (24dB/oct)Line [...]

Whether you're hard of hearing or simply because you cannot hear as well as you used to then help is at hand. Amplifying the ring tone can be helpful in letting you know that someone is trying to reach you. The Extra-Loud Telephone Ringer Amp is a small, portable device that notifies a user of an incoming phone call with a ring up to 95 decibels by sounding a loud horn. The Telephone Ring Amplifie

The Power Acoustik PS4-300 Power Series 4 Channel Amplifier 40W x 4 at 40 ohms, 50W at 2 ohms. 2 ohm stable stereo and tri mode capable . 3-way protection circuit plus system distress indicator. Variable hi-pass/low-pass filter plus selectable crossover . Variable 18DB bass boost (40 Hz). High/low [...]

Marshall MG250DFX 50 + 50 technologist Electric Guitar Combo Amplifier with Effects 1 utilised and new from $499.99 First tagged “guitar” by ramon galindo Customer tags: guitar Technorati Tags: guitar

The circuit can be wired up on a piece of perfboard; a PC board is not necessary, although one can be used. However you build the circuit, keep lead lengths short and direct, and separate the input and output stages. You may have to install the amplifier in your receiver. Otherwise, installing it in a [...]

This FM amplifier has been designed to take place on a heatsink microprocessor PC equipped with its fans, the advantage of this method of cooling has been selected for the fact that it is not very common and expensive. The Power out of the VHF FM amplifier can be achieved by 30 Watt. The size of the printed circuit of the amplifier will adapt quite easily to the type of heatsink as you have avai

As we all know headphone amps are not cheap to buy. I think this is the main reason that drives the hobbyist to make their own amps. Most people are familiar with the popular C’Moy headphone amp which is cheap to make and it sounds nice. But there also other designs available, for example this class [...]

Here is an 30 watt amplifier schematic that provides an appropriate power boost with an input of 4 watt up to 6 watts (2SC1971 Driver Amplifier recomended). The circuit is designed to cover 88-108MHz VHF FM broadcast band. However, the circuit is very stable at my place and provides a clean-output through 7 elements Butterworth low pass filter. The amplifier current can be over 5 amps. All the co

This RF amplifier circuit is suitable for the frequencies between 10MHz and 500MHz. These kind of amplifiers are called wide band amplifiers. Wideband amplifiers are used in communication receivers, RF measuring equipment and tons of other devices. The RF power amplifier circuit described here uses a state of the art transistor to get maximum performance at high frequencies. It can be used as a l

This is a RF Linear amplifier for QRO using power mosfet IRF840 with power out 60 Watts. It's simple all solid state circuit. The IRF series of power transistors are available in various voltage and power ratings. A single IRF840 can handle maximum power output of 125 watts. Since these transistors are used in inverters and smps they are easily available for around Rs: 20/-. The IRF840 linear amp

This electronic circuit is a video signal amplifier that offers a broad band amplifier with a bandwidth of 5 MHz which will take the video signals from your VCR and will amplify them sufficiently to drive up to 3 monitors, TV sets (provided that they can accept direct video signals), or other VCR�s for recording from one video to up to three others. The video signal amplifier will also make p

This audio project is designing an audio amplifier capable of delivering a decent output power with a minimum parts count, without sacrificing quality. This audio amplifier circuit employs only three transistors and a handful of resistors and capacitors in a shunt feedback configuration but can deliver more than 18W into 8 Ohm with <0.08% THD @ 1KHz at the onset of clipping (0.04% @ 1W - 1KHz

The Boss SE650 Special Edition 1000 watts, 4-Channel MOSFET Power Amplifier Max Power 2-ohm 250w x4, RMS Power 4-ohm 100w x 4, Max Bridged Power 4-ohm 500w x 2Signal-to-Noise Ratio > 105dB, THD 0.01%, Dimensions: 11-3/4 inch W x 2-11/16 inch H x 14-5/8 inch LTrimode operation, line and speaker inputsVariable gain control, power and [...]

Notes: The problem with amplifying weak radio signals is that you also amplify the noise. What you can receive depends on how much background noise is present, whether it be man made interference or static. In this design the RF signal is first met by a resistive attenuator, this is necessary as strong signals could otherwise [...]

AirCurve is a cleverly-designed acoustic amplifier that turns your iPhone into a no-power-drain alarm clock on your nightstand, or a mini sound system that never needs batteries or adapters. AirCurve looks like a simple, elegantly minimal stand for your iPhone. But inside is a cleverly designed coiled waveguide that collects the sound from the built-in speaker [...]

The Pyle 2400-Watt 2-Channel Bridgeable MOSFET Amplifier - 1200W x 2 channels (PL-A2220) 2 x 1200W rms at 4 ohms. 2400W max at 4 ohms bridged. Dual switchable bass boost. Dual variable electronic crossover network. Tri-mode capable. Gold-plated RCA inputs. High/low pass filter controls. 10 5/8” W 1 1/2” H x 15 3/4” D Price: $111.70Buy [...]

This electronic circuit is an exceptionally well designed amplifier, with a lot of power reserve, high fidelity, low distortion, good S/N ratio, high sensitivity, low consumption and full protection. Having all these almost ideal characteristics this amplifier is likely to become the basic building block of your future high fidelity system, or it can also become the element that will upgrade your

The high current capability of the LM2005 allows it to continuously endure either AC or DC short circuit of the output with a maximum supply voltage of 16V. This will protect the loudspeaker in a bridge mode, when a DC short of the output occurs on one side of the speaker. The device will prevent the speaker from destruction by reducing the DC across the load (bridge mode) to typically less than 2

The amplifier is for 144 MHz and build into a metalbox measuring 240x160x160 mm. The space is mainly taken up by the 28 V / 7 A power supply. On the rear side of the box the amplifier is mounted against a big heat sink. The amplifier itself is build on a piece of double sided PCB about 140x100 mm. There is no PCB artwork for the amplifier, simply cut out square islands with a knife, for solderin

This is a small amplifier of signal  that cover the frequencies from 40 to 900 MHz. Those frequencies include TV in VHF and UHF and also radio in the frequencies of 88 - 108 MHz, strip of FM. The signals in up to 20 dB, becoming possible to receive even the weakest signals. Below the circuit diagram The circuit is built in turn of an UHF broadband transistor, BFR 90. This transistor can ope

Here's RF power amplifier project, especially those who make QRP transmitters or exciters, are always looking for a linear amplifier to get more RF Output. Schematic and PCB are based on an article in ARRL Handbook 1981-3 detailing MRF454 Linear amplifier construction by K7ES. In PCB, the power amplifier has made is using a DIP 723 in place of G package which was not available to me at that ti

Κυκλοφορεί στη χώρα μας ένας από τους πιο αναμενόμενους ραδιοενισχυτές Home Cinema της αγοράς. Πρόκειται για τον Yamaha RX-V663, ο οποίος αυτή τη στιγμή αποτελεί μια από τις καλύτερες επιλογές στην κατηγορία κάνω-σχεδόν-τα-πάντα κ

Regular readers have no doubt seen me mention Free Talk Live on more than one occasion here at Philaahzophy.  They’re the only nationally syndicated, liberty oriented talk radio show in the world, and the only podcast I listen to.  Period. The AMP program is their innovative “subscription” service that is 100% voluntary.  AMP stands for Advertise, Market, Promote and all of th

This UHF RF Amplifier circuit uses MH720A1 hybrid power module from Mitsubishi that operates between 430MHz and 470MHz and will output approximately 20 Watts of RF power from a 10mW input source. This amplifier can be used as part of a 457MHz pager transmitter. This hybrid power modules amplifier are offered by various manufacturers and can often be obtained second hand of amateur rallies. Most

This circuit is 500 watt Multi-use VHF Power Amplifier for frequency up to 500 MHz. This amplifier module incorporates microstrip technology and a single BLF369 mosfet transistor. Input/Output 50 ohms and Power out 500W minimum with a 3 to 5 watt input. Power Supply requirements 22.5 Amperes 32 volts Schematic Circuit Here's the simple schematic circuit VHF power amplifier. Click image for enla

Here's 1000W FM amplifier and it a modern FM amplifier which integrates solid state reliability with the digital technology which makes it safe and easy to use. High gain MOSFETs transistors and systematic use of state of the art manufacturing methods. The amplifier, of simple and rugged construction, is able to satisfy the requests of all those end-users looking for top-quality equipment at reas

This RF Power Amplifier taken from FRB Amplifier Kit. It uses 2SC1971 for FM broadband design from 88 to 108 MHz. Power Amplifier Schematic Circuit Power Amplifier Printed Circuit Board and Component Layout Assembley Instructions RF power amplifier assemble by soldering the components to the pads indicated. Keep coil, resistor, and capacitor leads as short as possible. The coils should be

If there is anything that you would definitely need on your cell phone then it’s definitely these cell phone amplifiers. They are such a hit today and would really boost out the signal that you especially need. So go and get one of these and I’m sure that you wouldn’t really regret because it would give [...]

I used to have cable High Speed Internet from Rogers's Wireless about 4 years ago but didn't like their service so I switch to AOL. Aol is fine as long as you dont start having problem because their customer service is worst. It will take soo long before you can talk to their customer service representative. So when AOL pised me off, I switched back to Rogers Internet since I have if for free for

This VHF Power amplifier circuit is 500 watt Multi-use VHF Power Amplifier for frequency up to 500 MHz. The original post taken from The Broadcast Hardware Blog.  This amplifier module incorporates microstrip technology and a single BLF369 mosfet transistor. Input/Output 50 ohms and Power out 500W minimum with a 3 to 5 watt input. Power Supply requirements 22.5 Amperes 32 volts. Here's the

This Linear amplifier circuit describes a 10 watt linear amplifier that is capable of delivering over 15 watts into 50 ohms and uses cheap plastic transistors that are used in CB equipment. The bias generator transistor, TR4, is marked TIP31 in the circuit diagram, but here you can use just about anything that will fit. You could even use another 2SC2078, if you had money to burn, but more practi

If you want to build hi-fi power amplifier the size about 30watt to 50Watt at good sound and build easy. I begs for to advise the circuit that builds with the integrated circuit. You wares IC TDA2050 then like very the circuit model class AB audio amplifier. [.....] Read more

Because amplifiers have the ability to increase the magnitude of an input signal, it is useful to be able to rate an amplifier's amplifying ability in terms of an output/input ratio. The technical term for an amplifier's output/input magnitude ratio is gain. As a ratio of equal units (power out / power in, voltage out / voltage in, or current out / current in), gain is naturally a unitless measur

The RF power amplification of the RF amplifier circuit is provided by one or two transistors, MRF247. The standard power version uses one transistor (MRF247) and the high power version uses two. Each transistor is rated at 75 watts output. The input and output impedances of the transistors are matched to 50 Ohm by microstrip matching networks. The amplifiers are broadband and do not have any tun

This circuit is a RF power amplifier that RF power amplification is provided by a single transistor, MRF492 . The transistor provides at least 10dB gain in the 66-88 MHz frequency range. The input and output impedance of the transistor is matched to 50 Ohm by networks which use printed micro-strips and lumped elements. Variable capacitors C9, C12, C21 and C22 are used to tune the amplifier for opt

Description:Here is a reliably high sound quality audio power amplifier project based on the National Semiconductor’s LM1875 IC. The circuit that we give is a similar form of the application circuit in the datasheet that NS provides. It is really easy to build and low cost. The voltage gain of the each monolithic channel is 27dB but you can change this value by adjusting the resistors at the fee

Denon continues to make the AV amplifier, and this time it’s AVC-2809 (successor AVC-2808), which should be available at the end of August.  The AVC-2809 is an output capacity 7×160 Watt (6 ?), the bandwidth of 20 Hz-20 kHz with, 3 features an HDMI input / output 1 HDMI 1080p supporting video signals and can [...]

This video signal amplifier circuit is a broad band amplifier which will take the video signals from your VCR and will amplify them sufficiently to drive up to 3 monitors, TV sets (provided that they can accept direct video signals), or other VCR’s for recording from one video to up to three others. It will also make possible to record from one video to two others and at the same time have a mon

This RF FM Amplifier is always essential for the amateur that wants it strengthens some small transmitter. The present circuit of BLY90 can give 50-60W power out with input control 15-20W in FM band II 88-108 MHz. Schematic Circuit Printed Circuit Board Parts List C1-C4 = 10-80pF C5 = 10nF C6 = 1000pF C7 = 100nF C8 = 2200mF/35V TR1 = BLY90 L1 = 1 Turn of diameter of 10mms, 1mm L2

The LM2005 can withstand a constant 28 VDC on the supply with no damage (maximum operating voltage is 18V). The device is also protected from load dump or dangerous transients up to 40V for 50 ms (every 1000 ms) on the supply with no damage.Download LM2005 20 Watt Automotive Power Amplifier Datasheet

This electronic circuit is a RF Power Amplifier for driving small UHF TV transmitters. Its gain is 7dB and can amplify a signal between 450-800 MHz. You can drive the circuit with 1 to 1,5 Watts signal. Better use double layer PCB with the second layer connected to earth. Use a stabilized power supply 25 volts and at least 5Amps.The transistor case is the SOT-122A and be careful because the transi

This circuit is a high quality headphone amplifier. It's no need for a preamplifier. This circuit equipped with a symetrical power supply.Amplifier parts list:P1 - 22K Log.Potentiometer (Dual-gang for stereo)R1 - 560R 1/4W ResistorR2,R3 - 10K 1/4W ResistorsR4 - 12K 1/4W ResistorR5,R6 - 2R2 1/4W ResistorR7 - 22R 1/2W ResistorC1 - 1µF 63V Polyester CapacitorC2,C3,C4 - 100µF 25V Elec

A number of companies now have tried going down the compact-design route when it comes to amplifier construction. Companies such as Alpine, Pioneer, and even Kicker have their versions of compact amplification design.As technology progresses, things get smaller. It’s the nature of the beast, and there’s nothing stopping the industry from continuing on this development. JVC’s 2008 Arsenal amp

This project is a simple 2-transistor VHF power amplifier, with about 16dB gain, and requires no tuning or alignment procedures. Wideband techniques have been used in the design and the circuit is equipped with a "lowpass" filter to ensure good output spectral purity. The project has been designed for assembly on a single-sided printed circuit board. The circuit is specifically designed to amplify

This rf power amplifier design for a 2.5 Watt power amplifier for the FM band. An input of 50 mW gives a final output power of 2.5 Watts with a 13 Volt supply. The best bit is that the amplifier requires no tuning once it's built - it gives roughly the same gain and output power right across the FM band from 88 to 108 MHz.There's even some hefty output low pass filtering to make sure that harmoni

The CA3140A and CA3140 are integrated circuit operational amplifiers that combine the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip.The CA3140A and CA3140 BiMOS operational amplifiers feature gate protected MOSFET (PMOS) transistors in the input circuit to provide very high input impedance, very low input current, and high speed perfo

High gain MOSFET transistors and systematic use of state-of-the-art manufacturing methods, have helped us to find effective solutions for the design of this new equipment. The amplifier, of simple and rugged construction, is able to satisfy the requests of all those end-users looking for top-quality equipment at reasonable prices. The RF power input is divided by 4 by means of a power splitter and

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.Download Monolithic Power Amplifier LM1875 Datasheet

The LM386 is a power amplifier designed for use in low voltage consumer applications.Download LM386 Low Voltage Power Amplifier Datasheet

The TDA7053 is an integrated class-B stereo power amplifier in a 16-lead dual-in-line (DIL) plastic package. The device,consisting of two BTL amplifiers, is primarily developed for portable audio applications but may also be used in mains-fed applications.Download Datasheet 2 x 1 W Portable-/Mains-Fed Stereo Power Amplifier TDA7053

EL8102 Based Video Amplifier With Sync Stripping and DC Restore.Download Application Notes EL8102

This Power Amplifier might be good solution to all of those who have PC with integrated sound card into motherboard. The main problem is that outputs of such sound cards are for active acoustic systems, this means that speakers must have power amplifier built in. If you decide to connect a headphones sometimes it might be not enough to provide required sound level.If you are an electronics amateur

The LM386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.Features:Battery operationMinimum external partsWide supply voltage range: 4V-12V or 5V-18VLow quiescent current drain: 4

The LM1875 is a monolithic audio power amplifier offering very low distortion and high quality performance for consumer audio applications.Fetaures:Up to 30 watts output powerAVO typically 90 dBLow distortion: 0.015%, 1 kHz, 20 WWide power bandwidth: 70 kHzProtection for AC and DC short circuits to groundThermal protection with parole circuitHigh current capability: 4AWide supply range 16V-60VInte

The circuit transmits 200MHz (-3dB bandwidth) video signals while stripping off the sync pulse and performing DC restoration. It is configured for a typical video cable driver application driving a double-terminated 75Ω load, where the EL8102 (IC3) is configured for a gain of +2 to ensure unity gain throughout.Sync StrippingIn component video systems it is frequently necessary to remove the sync

This electronic circuit is Video Amplifier Application using Integrated Circuit (IC) LH0032, High Speed Op Amp Applications.Circuit SchematicTypical ResponsePart ListR1= 15Kohm+15KohmR12= 100ohm trimmer C3=4.7pF ceramicR2-3-4= 10Kohm R13-15= 47ohm IC1= LH0032 (datasheet)R5.....9= 1Kohm R14= 10Kohm S1= 1X2 mini switchR10= 820ohm C1= 10uF 63V MKT S2= 1X6 sel.R11= 1Mohm C2-4= 100nF 63V J1-2= BNC con

A general purpose audio power amplifier is a must have for the electronics amateur. It's not a good thing to use your HiFi set for an experiment, when there's a risk of blowing it's transistor out. Amplifier for your experiments should be simple in construction, durable, and easy to repair. Also a portable, low power consumpting, battery operateable one will be suitable.Taking the considerations a

2004 – 2005 model year 4Runner, Prius, RAV4, Sienna, Solara, and Tundra vehicles equipped with the JBL audio system produced BEFORE the Production Change.

Wireless 5.8GHz Speaker Amplifier Rear Channel Digital Audio Link for Surround SpeakersBy Shoptronics Buy new: $119.952 used and new from $45.00 Customer Rating: First tagged “samsung” by tuamega Customer tags: wireless surround [...]

Wireless 5.8GHz Speaker Amplifier Rear Channel Digital Audio Link for Surround SpeakersBy Shoptronics Buy new: $99.99$119.952 used and new from $45.00 Customer Rating: First tagged “home theater” by tuamega Customer tags: wireless [...]

This wide band signal amplifier circuit which is suitable for the frequencies between 10MHz and 500MHz. It will amplify your radio and TV signal, from band I - Band III, and a little Band IV.Wide band RF amplifiers are used in communication receivers, RF measuring equipment and tons of other devices. The circuit described here uses a state of the art transistor to get maximum performance at high

This RF Power Amplifier is a broadband power amplifier operating over the frequency range 88 - 108 MHz and using the new STMicroelectronics RF MOSFET transistor SD2932. Typical Acheivable Performances Device 1 X SD2932, Frequency 88-108 MHz, Vdd 50 V, Idq 200 mAPout 300 W, Gain >19 dB, Input Return Loss 70%Power Amplifier Design: (Datasheet)1. Input Matching NetworkTypical input gate to gate impe

Almost all receivers have a built-in level controls which are adjusted by their manufacturer to give the correct output level for a standard satellite input signal. In some cases this control can be advanced far enough to lift ATV signals to the same output level but most receivers will need this design adding to assist them. There is a penalty to pay for winding an amplifiers gain up, given

TV Linear Power Amplifier for 470-860 MHz taken from Philips Aplication Note (AN_BLW32_33). Please download file in PDF format.The Wide-Band UHF Power Amplifier for TV Transposer band IV/V designed with transistor BLW32 and BLW33. In this case, my RF Amplifier design replaced them with 2 pieces BLW34 have good result.For combine two BLW34 download file here

The TV amplifier has been tuned under class-A small-signal conditions and characterised under large signal class-AB conditions from band IV - V in UHF. (All Datasheets)Amplifier Circuit The total description of the amplifier is given in Figs 6 and 7 and Table 8 (in datasheet). The amplifiers input and output matching networks contain mixed microstrip-lumped elements networks to transform the termi

A broadband linear power amplifier design is presented, suitable for application in TV transposers operating in band IV and V (470 to 860 MHz). The design is based on two BLV859 bipolar transistorscombined with quadrature hybrids. Typical results at the recommended class-A bias point (25.5 V/9.1 A) for the total module include 40 W peak sync output power at -54 dB three tone IMD level (fvision = -

A broadband RF power amplifier design is presented, suitable for application in TV transposers, operating in UHF band IV and V(470 - 860) MHz, with simple printed circuit board.The Rf power amplifier design is based on a BLW898 bipolar transistor. Typical results at the recommended class-A biaspoint (25 V/1.1 A) for the total module include a 3-tone IMD level of -64 dB (fvision = -8 dB, fsideband

This RF power amplifier works in frequency 470 - 860 MHz UHF Band IV and V with power out 14 Watts with input power 1.5 Watts. The power amplifier is suitable for amplifying rf signal your tv transmitter with 0.5 - 2 watts power output.SchematicRF power amplifier circuit is taken from Philips transistor application note, as you can see below.Part Lists:C1 = C6 = C16 = 4,7 pF (500 V) multilayer c

From #1 TV RF Power Amplifier 14WBIAS CIRCUITBelow is the RF power amplifier's components part list and bias circuit for supply feeding.C1, C2, C4, C5, C6 = 1nF LCC Chip + 10nF LCC ChipC3 = 100µF SpragueC7 = 10µF SpragueD1 = 1N 4001L1, L2 = 5 Turns , Diameter 0.5 mm, W Diameter 3mmP1 = 1k.R1 = 56 ohm/ 1/2WR2 = 5600 ohm, 1/2WR3 = 2.2 ohm, 3WR4, R5 = 56 ohm, 1WR6 = 4,7 ohm, 1/2WT1 : BDX 54 B/BD1

This RF power amplifier module is a product of Philips Semiconductor, hybrid amplifier module CATV systems operating over frequency range of 40-860 MHz at a voltage supply of 24V DC with features :· Excellent linearity· Extremely low noise· Silicon nitride passivation· Rugged construction· Gold metallization ensures excellent reliability.This BGX881 CATV Module can also be used to amplify yo

This RF power amplifier application works on UHF band frequency 440 Mhz and uses as UHF repeater power amplifier. Power amplifier out 30 watts (5 dB gain) use a single transistor 2SD1434.For driving the amplifier use 10-14 watt input with output power range 30-45 watts. Please see datasheet sample design for 470 MHz (SD1434.pdf) and Amplifier Application produced by Hamtronics.Other use of the pow

The following single-stage transistor linear amplifier posseses a gain of approximately 7 dB and an output power of 1 W in the 13 cm band (approx. 2.4 GHz). It is thus suitable for use, for instance, together with the 13 cm transmit converter. This hybrid power mixer equipped with a varactor diode type BXY. This mean that the described 2.4 GHz power amplifier can provide linear output power in the

This application circuit is a TV RF amplifier for driving small UHF TV transmitters, with gain is 7dB and can amplify a signal between 470-860 MHz. Drive input the circuit with 1 to 1,5 Watts signal. Better use double layer PCB with the second layer connected to earth.Use a stabilized power supply 24 volts and at least 5 Amps. The transistor case is the SOT-122A and be careful because the transis

This RF amplifier is to strengthen a small signal in the region of VHF or FM, or it is we lead a body, or a receptor. The preamplifier that to you we propose offers 20dB in all the region of VHF and it still can reach also their 500MHZ.The amplifier is a circuit of high frequency RF with distinguishable materials. The amplifier as circuit strengthens the tendency of signal with concrete aid, depen

This innovative dsPIC30F2020-based project showcases an interesting approach for reducing speaker distortion and increasing bass response. A dual-coil speaker driver is implemented in the design, but only one of the coils is connected to the power amplifier. The other coil is used for electromotive feedback. This is not a new idea, but many do not implement [...]

IntroductionThe circuit in Figure 1 transmits 200MHz (-3dB bandwidth) video signals while stripping off the sync pulse and performing DC restoration. It is configured for a typical video cable driver application driving a double-terminated 75Ω load, where the EL8102 (IC3) is configured for a gain of +2 to ensure unity gain throughout.Sync StrippingIn component video systems it is frequently nece

This UHF wideband signal 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 UHF TV signal amplifier to work correctly, you need to cut the components pins as short as possible. C1, C2, C6, C7 are SMD type (surface mounted). This antenna tv amplifier or uhf wideband amplifier need to be build inside of a metal box an

This RF Power Amplifier is used for boosting small fm transmiters and bugs. It use two Philips 2N4427 and its power is about 1Watt. At the output you can drive any power amplifier with BGY133 or BLY87 and so on. Its power supply has to give 500mA current at 12 Volts.More voltage can boost the distance but the transistors will be burned much earlier than usual.! In any case do not exceed the 15Vol

Kustom have been kicking out little entry level practice amps for quite some time now. The KBA10 and KGA10 have become the staple diet of beginners across the country, being supplied in Encore Playnow packs and being available for as little as £49.99. The KBA10 of the Kustom X series is Kustom’s entry level bass amplifier [...]

This circuit is designed to work at UHF frequencies in the range 450-800MHz. It has a gain of around 10dB and is suitable for boosting weak TV signals. This RF amplifier use transistor MPSH10 with 9 volt power supply.The MPSH10 transistor used is available from Maplin Electronics order code CR01B. Alternatives that may be used instead are BF180 and BCY90. The tuned circuit comprising the 15nH indu

Audio Video Distribution amplifierWith 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 particular circuit helpful when used in conjunction with the Universal Descrambler and a Stabilizer circuit I built for making copies of video tapes. It not only allowed me the ability to fine tune the video stre

The SST11LP12 is a high-power, high-gain power amplifier based on the highly-reliable InGaP/ GaAs HBT technology. The SST11LP12 can be easily configured for high-power, high-efficiency applications with superb power-added efficiency while operating over the entire 802.11a frequency band for U.S., European, and Japanese markets (4.9-5.8GHz). It typically provides 35 dB gain with 16% poweradded effi

This application use a common NPN RF transistor called 2SC1970. You can also use other transistors like 2N4427 and some others. Check datasheets to se how much power the transistor can handle. 2SC1970 will handle 1.3W and 2SC1971 up to 6W. Most transistor has a power gain of 10dB meaning 10 times power amplification.This is the reason why you must use several stages to achieve a strong transmitte

DAC4800A Ultra Linear Stereo Power AmplifierBy Digital Amplifier Company 3 utilised and new from $2,799.00 Customer Rating: First tagged “rock” by Loud Speaker “Royal-T” Customer tags: dali(2), amp(2), clean sound, diana krall, [...]

The Stagg 10 GA is definitely one of the lowest priced guitar amps in the history of the universe, selling for as little as £24.99. At this price you’d be right to be wary (I know I was), you’d need to ask questions like; ‘is it made from old beer cans?’ and ‘will it not sound [...]

  CMoy is a very simple and portable headphone amplifier. The amplifier was originally posted by Chu Moy on headwize.com. Headphones amplifiers are usually used when the output of a device is to low for the kind of headphones you’re using, or to get better sound quality by keeping the device on a medium volume setting [...]