Gainclone amplifiers. Kit for GAINCLONE 3875 LM3875 50W+50W 8ohm Amplifier board+speaker protection SC. D h m s day hour hours Free P&P See item description Approximately: (Enter ##1## or more) (Enter more than ##1##) Your maximum bid: You've been outbid.
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Introduction First, some years ago an English Hi-Fi magazine reviewed a locally (UK) made low power amplifier (I think it was 15 Watts) powered by batteries.
This was not a cheap design, it sold for £1500. Internally there were only two devices, one monolithic power amp chip per channel (from here on will be called the Gainclone IC). Now there has been amplifiers, especially integrated types from oriental sources, that have used IC power amp modules. But what made this different was the rave review, it was to all who heard it, evidently a real surprise packet. Again, in more recent times, an unusual small scale specialist Japanese manufacturer also brought out a product using the exact same IC power chip. It is apparent these products were aimed at the hard core audiophile fraternity, especially for those who may also be interested (even intrigued) by possible alternatives to SE Triodes.
Simple and robust DIY chassis made from aluminium panels and large heatsinks. Fitted with LM3886 chip amplifier. This is a simple chassis using just 4 aluminium panels and 2 heatsinks.
Designed around dimensions to tightly pack in a LM3886 chip amp kit. The top and bottom pannels sit in ridges cut into the heatsinks with a table saw, and then the front and back panels just bolt into the end fins. Rear panel fixings are held with M3 nut and bolts, and panels that join to the heatsinks are held by M4 bolts tapped directly into the heatsinks so no additional brackets are required.
Point to point wired LM3886 chip amplifier with a hi-cap snubberised PSU. Tiny and Transluscent Chip Amplifier - TATCA: A custom tiny chassis for a gainclone chip amplifier. Gainclone amplifiers. Hybrid GainClone Amplifiers. 19 May 2008 I asked if any reader knew of a unity-gain-stable power OpAmp last time.
Thanks from me to those who made suggestions, such as the LM12 and the Apex line of high-voltage/high-power OpAmps. (Sad to say, but it turns out that I do not own any LM12s after all. They are $50 devices, which undoubtedly adds to the sadness.) Opampgain_1. Page last modified: 17-may-12 Adding from day to day...
Introduction When building my first gainclone I stuck to the well known and published designs for a non-inverted GainClone. However, like everybody I like to know why I'm using a particular resistor or capacitor value and what the effect of other values will be on the amplifier output. Just when I thought I understood some more about OpAmps I decided to build PhonoClone, a Phono equaliser with MM and MC input with OpAmps. Some of the paragraphs on this page therefore refer to GainClones, some to preamps and some to both. What's the problem? Milk-Mint GainClone. Introduction The audio amplifier described in this page uses the LM3875TF chip by National, the driving force behind one of the most famous "Do It Yourself" projects of the last years.
It's interesting an interesting device capable of good sound and the advantage to employ a very small number small number of external components,which makes it easy to be constructed. In short... a classic GainClone! This time dressed in a fancy way, at least for this kind of device, but with some original and unusual technical solutions. For more specific information on GainClone, a web research is all you have to do. Compared to the standard configuration, I added a few small variations. Mat's DIY electronics - Home. Cristian Ortega del Rio. Home made GainClone on LM3886.
This is a construction of cheap home made GainClone based on LM3886.
This device is made on a „star” instead of PCBs. There is no complicated selector on relays, but it is mechanical. Second section supports the display. Solution of the problem with the transmission of potentiometer was the same as in old tuners with mechanical scale. This provides the length of signal path is limited to the minimum. LM3886 Gainclone 2x68 Watt Full Amplifier Project. Description In this application, we are building a gaincard like amplifier.
This application type is named gainclone in the audio world. To take a satisfactory audio response, we are adding a Linkwitz equaliser to the feedback line and adding bass compensation also. We are using LM3886 which is the revised version of its brother LM3875.Briefly features of LM3886 are; Chip AMP LM3875 Gainclone Compact with Snubber PSU. Audio Video Entertainment Electronic Circuits. Audio Video Entertainment Electronic Circuits. Sjöström Audio - QRP02 The SMD Gainclone - high performance mono power amplifier. Click on the picture to get a larger view.
Specifications for the new advanced Gainclone. 50 um pcb with groundplaneFast recovery rectifier diodes, TO247 and option for TO220High performance 4700 uF/50V max, 10 mm snap-in and regular ones too.LM3886, inverting, 1k+18k, properly decoupledMuteOutput filter, 14 turns, diam 8 mm, 1.5 mm wire, 5 mohms, 0.7 uH (I can get those inductors free of charge)Zobel networkDC-servo, AD8620, properly decoupled (possible not to use it)Input buffer, non-inverting, 220 kohms input impedance, AD8620, properly decoupled.LM317/337 in SOT223All elctrolytic caps hole mountedSMD caps PPS, X7R, NPO types, 0805, 1206, 2220 sizeSMD resistors, 0805Lug connectors with option for 2.5 mm2 wiresFuses 5 x 20 mm. DIY: Chipamp.com Gainclone Chip Amp Kit. You know we love tubes and all things analog, but there is another trend in DIY sound amplification that has been hard to ignore: "Gainclone" amps.
This term is going to be new to a lot of you, but to a diehard group of internetters, this is the holy grail of amplifiers. We have been secretly watching the movement from the shadows for the past few years and finally decided we had had enough of hiding on the sidelines. Brian Bell (or Briangt) of chipamp.com sent us one of his increasingly famous kits to build a little powerhouse out of.
How To: Chipamp.com Gainclone Chip Amp Kit Part 2. It’s funny... usually we gather materials over the years and store them away where they will never be used. Parts are helpful here and there, but overall, the stuff just sits. When it comes time to do a DIY project, we find new used parts to build with. Yes, “new used”. Lately… maybe it’s the economy, or maybe there are just too dang many things lying around, we have decided to make use of the old stuff.
This is probably how we arrived at the methodology behind this project. Last time we showed you some of the work on the box; a little bit of drilling, lots of cutting, and an obscene amount of grinding with a Dremel tool. This time we will go into some of the kit assembly to show how easy it is to build the actual kit. RJM Audio - LM3875 Non-inverting Gainclone. Introduction : Background Info : Construction Notes Introduction The model 4706 Gaincard from 47 Laboratories is a 25 Watt stereo amplifier about the size of a video cassette, powered by a large external supply. It amplifier uses a power op-amp and a minimum of parts, connected with the shortest possible signal path, particularly the feedback loop. Gainclone (Chipamp) » Gielfeldt Audio. Amplifier. All the work that went into Gaincard and Power Humpty was aimed at achieving this goal.
Extreme simplicity ----- minimum circuitryThe heart of sound lives in the point of contact where musician and instrument meet. To trace this point-of-contact sound wave, Model 4706 utilizes a filter/condenser with the smallest possible capacity and a minimum number of parts, and the shortest signal pass length ever. All the parts (except attenuators) are mounted on a circuit board measuring 45 x 30 m/m per channel. Powerful voltage regulationIf energy supply depends on the capacity of filter/condensers, you can easily lose the freshness of sound. The high capacity transformer of Model 4700 (170 VA) regulates enough energy to support the extremely small filter/condenser (1000 F) of Model 4706, enabling it to trace avalanches of fff.
Gaincard is capable of driving any speakers as long as their impedance stays over 4 ohms. Decent Amp for my Office. Hardware Photos Here's some photos of the hardware. The first photo shows the amp as it sits on the shelf. These amp chips are actually plenty efficient to operate without a heatsink at office-volume levels. In fact, when everyone is gone and I'm left alone in the office, I can turn it up to clipping and run there without any heatsink for more than an hour with only minor heating of the top plate. The schematic implementation is really just a version of the example shown on the datasheet for the LM3886. Gainclone - YesPDFs - PDF Search engine. Free unlimited pdf search and download. DIY BPA300 6x LM3886 300W audio Amplifier. DIY BPA300 6x LM3886 300W audio Amplifier. DIY BPA300 6x LM3886 300W audio Amplifier. PA100 DIY 2x LM3886 in parallel gainclone audio amplifier. PA100 DIY 2x LM3886 in parallel gainclone audio amplifier.
GainClone Introduction. DIY Chip Amps, Gainclone, Opamp and T-Amp Projects. Gainclone amplifiers. Best Gainclone Design is? Gainclone - Who or What is Gainclone? Find out more. Encyclopedia : G : GA : GAI : Gainclone Gainclone is a term commonly used to describe a type of audio amplifier made by do it yourselfers , or individuals interested in DIY audio . It is a design based on high-power integrated circuits and in particular [ LM3875 ] from [ National Semiconductor ]. The idea was made popular after the introduction of the [ Gaincard amplifier ] from the Japanese high end audio brand 47 Labs. Background The Gainclone or "chip amp" is probably the most commonly built and well known amplifier project, it is extremely simple to build and involves only a few parts which all are readily accessible, and is very inexpensive.
Controversy over these "Gainclones" or "chip amps" still exists, and variations have spawned. Gainclones and Headphones. I’m finally able to try out one of these Gainclones for headphone duties. The gainclones have somewhat of a cult following, and it’s based on a simple chip-amp design by 47 Labs called the Gaincard.
The original 47 Labs Gaincard was quite an invention in the world of audio. DIY Audio, Gainclone amplifiers. LM3886 68Wx2 HiFi Audio Amplifier SRH-19 - Boards. Gainclone kit. Penny DIY AMP LM3886 Pure Post-AMP 68W+68W Amplifier Board: Amazon.co.uk: Musical Instruments. Description 1: The board is 1.6 mm dual-panel design, brass foot precision error of 1% metal film resistor KOA imports, small capacitors ELNA fever and tonic by the Japanese original capacitance, imported 20,000 microfarads capacitor filter. 2% silver solder wire welding. 2: The board adopts the advanced UPC1237 speaker protection circuit, make your speakers more secure. 3: Original Omron relay silver contacts, the contact better, lower distortion power Basic parameters: Output power: 68W +68 W power without distortion Output Impedance :4-8 ohms Amplifier board input voltage: 20V-28V dual AC input.
1 LM3886TF amplifier AMP+RECTIFIER FILTER BOARD DIY KIT. D. LM3886 Hi-End AMP Amplifier DIY KIT 68W component SET. Postage to: Worldwide. LM3886 Amp Board+rectify filter LM3886TF KIT Amplifier DIY 2 CHANNELS NOVER CAPS. Postage to: Worldwide. LM3886TF LM3886 HIFI AMP AMPLIFIER BOARD DIY KIT. Please read the full listing. By clicking Confirm bid you commit to buy this item from the seller if you are the winning bidder. You will enter a binding contract. 5 LM3886TF amplifier AMP+RECTIFIER FILTER BOARD DIY KIT. OPA541 Parts Placement Guide and PCB Foil Pattern.
New Page 1. OPA541 Parts Placement Guide and PCB Foil Pattern. OPA541 Parts Placement Guide and PCB Foil Pattern. Gainclone amplifiers. Mick Feuerbacher Audio Projects. Mick Feuerbacher Audio Projects. Mick Feuerbacher Audio Projects. GainClone 2x68W LM3886 Audio Power Amplifier. DIY Chip Amplifier Kits, PCB's, Components and Information.
GeenKloon Page 1. Homebuilt Hi-Fi - A user submitted image showcase of high quality home built hi-fi components. Homebuilt Hi-Fi - A user submitted image showcase of high quality home built hi-fi components. The Cathedral Gainclone. Gainclone Power Amplifier LM3886. Gainclone Power Amplifier. LM3886 Gainclone 2x68 Watt Full Amplifier Project. Ryan's GainClone. GainClone Experiments. Gainclone amplifiers. Yet another gainclone project. Gainclone. LM4780 Dual 60W Audio Power Amplifier. Mick Feuerbacher Audio Projects. Mick Feuerbacher Audio Projects. Mick Feuerbacher Audio Projects. Gainclones. Module Amplifier - 100W Mono Amplifier Module LM3886 Audiophonics. Amplifier Module - AUDIOPHONICS APD86 MKII 2x68W Stereo Amplifier LM3886.
GainClone - LM3875T with Regulated power supply. PSU for Gainclone, regulated with center-tap. A Gainclone for the PC Age. Roman Black's gainclone amp. PA100 DIY 2x LM3886 in parallel gainclone audio amplifier. DIY Audio, Gainclone amplifiers. LM3876, LM3886 amp. Gainclone amplifiers. DIY, audio, electronics... Matttcattt's DIY Audio Site.
ADX Electronics Gainclone article. Glenn's LM4780 Dual 60W Audio Power Amplifier. Mikkel's audio electronics pages. Platenspeler's gainclone, phono and cabling projects. DJ-7 Electronics Website. Gainclone amplifiers. Gainclone. GainClone. This is not just another gainclone. GainClone ver 2 - LM3875T with Regulated power supply. Gainclone amplifiers. Project 115 - GainClone. First foray into gainclone power amplifer using LM3875 and p2p wiring. DIY LM3886 Power Amplifier. The "ChipAmp" Amplifier.