Gainclone amplifiers. Kit for GAINCLONE 3875 LM3875 50W+50W 8ohm Amplifier board+speaker protection SC. Gainclone - Price Comparison, test reports and product ratings on XXL-Sale.co.uk. Find the best prices now! Tubes & The Gainclones. 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. Gainclone Circuitry The story does not end here. I would now like to analyse the above. 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. As a general rule, it's always preferable to have an attenuator of less value than the input impedance. 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. 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. 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. It would prolly be a good idea to give a little (paraphrased and abbreviated) background on Gainclone amps to get us started.
The original solid state Gaincard amplifiers were designed by a man named Junji Kimura- you could say that Koji Teramura had a hand in the design as well, having some very nicely tuned ears to lend to the project. Now this is all well and good but the real greatness comes from the price: about $2k. 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. Back to that in a bit... Soldering (pronounced “soddering”) is something that you need to practice to be good at. 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. Background info: Junji Kimura's Gaincard held the fascination of many, especially within the DIY community. 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. 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. Modern Usage The term "Gainclone" was first used for attempts to clone or copy the [ Gaincard amplifier ]. Typical Characteristics The Sound Comparisons and Attempts to Duplicate The Gainclone IC, LM3875 or LM3886.
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. With a total parts count of only 9 per channel, the audio signal only runs the length of shorter than two inches! In fact, 47 Labs’ slogan of “Only the simplest can accomodate the most complex” is highly demontrated in the Gaincard.
Given the simplistic design, it was not hard to figure out the schematic once you get to see a picture of the internals. As people realize the importance of a good amplifier for headphones, there has been a demand for an affordable but good desktop amplifiers. Before we continue, it’s important to outline that DIY amplifiers are quite varied on the build and sound quality. 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. 1 LM3886TF amplifier AMP+RECTIFIER FILTER BOARD DIY KIT. LM3886 Hi-End AMP Amplifier DIY KIT 68W component SET. LM3886 Amp Board+rectify filter LM3886TF KIT Amplifier DIY 2 CHANNELS NOVER CAPS.
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. Place bid Review and confirm your bid Bid confirmation. 5 LM3886TF amplifier AMP+RECTIFIER FILTER BOARD DIY KIT. OPA541 Parts Placement Guide and PCB Foil Pattern. This is the power supply I used in my Opamp-based Power Amplifier. Transformer is a custom built 35V-0-35V/5A and 20,000uf caps per rail. New Page 1. Bridge Parallel Configuration Gainclone Introduction:
OPA541 Parts Placement Guide and PCB Foil Pattern. 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. In 2002 in a thread in Audio Asylum some pictures were presented that were said to show the inside of an original Gaincard. Shortly thereafter Yoshi Segoshi of Sakura Systems responded, claiming that the photos were not of a 47 Labs Gaincard and when asked to provide photos of the internals of a real Gaincard, he refused to do so.
Mick Feuerbacher Audio Projects. GainClone 2x68W LM3886 Audio Power Amplifier. So, you need power, real pure audio power, not to annoy your neighbors with your psy trance collection of CDs or gigabytes of digital music in your computer that you carefully selected, but just to know that, by just turning your volume control a notch, you are able to unleash a monstrous sound prone to create envy to your audiophile friend.He just bought his (perfect) tube amplifier, but not you.
You want to enjoy the master pieces of classical composers, your favorite jazz groove or that north European head-banging heavy metal band without needing a second mortgage for your house. 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.