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 NEW    Bruce Heran outlines the details and construction of his simple DIY 6DJ8 (ECC88) Tube Hi-Fi Headphone Amplifier Project.

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DIY-HiVi-Home-Theatre-Speakers.jpg
DIY-HiVi-Home-Theatre-Speakers.jpgHiVi Home Theater Speakers5631 viewsDIY HiVi home theater speakers. See the project pages for full details.

- DIY 3-Way HiVi Tower Loudspeakers
- DIY HiVi Center Channel Speaker
- DIY HiVi SP10 Subwoofer Project
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DIY-TDA2050-Mini-Gainclone-Chipamp.jpgTDA2050 Hi-Fi Chip Amplifier (chipamp)5622 viewsInside view of my "Mini Gainclone" - a TDA2050 Hi-Fi Chip Amplifier (chipamp). Output is about 25W and the amplifier is built on a protoboard. The power supply contains a 120VA torroidal transformer, 10,000uF capacitors and generally follows the "snubberized" gainclone power supply design. For full details, see the DIY TDA2050 Hi-Fi Chip Amplifier project page
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K-12G-Tube-Amp-Kit-S5-Electronics.jpgS5 Electronics K-12G Tube Amplifier Kit5614 viewsA completed K-12G Tube Amplifier Kit by Jason Sartor from Temple Arizona. The kit uses 10GV8 tubes and is housed in a nice looking DIY enclosure.
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2-channel-Hi-Fi-Setup.jpgGio's Two Channel Hi-Fi Setup5606 viewsThis is my current 2-channel setup. NAD C521 CD player, NAD C162 preamp, DIY 50EH5 Tube Amp which drives Radio Shack 40-1310 Super Tweeters) and LM3886 Chip Amplifier (Gainclone) which drives a pair of BD-Pipes with Radio Shack 40-1197 drivers. The small box on the bottom right is a Slim Devices Squeezebox.
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Diaphony3.jpg"Diaphony's" An open baffle design5603 viewsConstruction
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DIY-HiVi-Swans-M1-Speakers.jpgDIY Swans M1 Speakers - HiVi Research5598 viewsDIY build of the Swans M1 Speakers from HiVi Research.

See DIY HiVi Research Swans M1 Speakers
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NCDIYMeet042010a.jpgNorthern California DIY Audio meet Roseville, CA 04/24/20105593 viewsNice meeting with Sigfried Linkwitz guest speaker
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The_SetUp.JPGLow noise mic preamp5581 viewsAfter preforming an on street recording of a classical busker with my Cowon mp3 in Florence I decided I wanted to do more recording. The Sony ECM-MS957 stereo mic (not made any more) had too low output to drive my mp3 player line-in or laptop digitizer so I made this low noise, two stage transistor (BC549) preamp (red lid). Because I used large 10uf polypropylene capacitors to ensure high quality sound recordings the preamp, though portable with internal batteries (12V), is quite large. Now I can use my mp3 player (128kps) to make quality recordings anywhere. There is no hiss or processing noise at all. The preamp is dead quiet. The preamp from the ESP site and is extremely easy to build. I use silver wire and silver solder throughout and gold connectors where possible. You can use 10uF electrolytic capacitors where I used polies but for the very best sound use the polyester capacitors. The designer suggests this in his text.

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Nigel-K-12G-Tube-Amplifier-Kit-Build~1.jpgK-12G Tube Amplifier Kit Build5573 viewsNigel's build of a K-12G Tube Amplifier Kit.

For full details of Nigel's build, see his K-12G Tube Amp Kit Build thread.
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DIY-Zigmahornet-Loudspeakers-Merrill-4_4-drivers.JPGZigmahornet Loudspeakers with Merrill 4.4 Fullrange Drivers5563 viewsThis was my first attempt at speaker building. They are Zigmahornet Speakers with Merrill 4.4 fullrange speakers instead of the Fostex FE103E. I chose black paint because it fit with the TV and TV stand/stereo cabinet that I have plus it hides my questionable workmanship. All in all, I really enjoyed making them and with the Merrill drivers they sound great with a surprising amount of bass from such a small driver.
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S5-Electronics-K12-Tube-Amp-Kit1.JPGS-5 Electronics K-12 Tube Amp Kit (220V)5549 viewsAnother S-5 Electronics Tube Amplifier Kit from down under. This one uses a 220V transformer from Gammatron at Salisbury. The amp is dead silent and has fantastic bass and the sound stage is better than anything I have heard.

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Diaphony7.jpg"Diaphony's" An open baffle design5545 viewsConstruction
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AMPWOOD.jpgWood Frame for Tube Amp Kit5519 viewsBubinga and Walnut wooden frame finished with Tung Oil.
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Underside.JPGPartial Wiring Close up5518 viewsPoint to point wiring is a must in my opinion to achieve what you owe yourself , when it comes to turning the piece of art on . I just wish I could of shown my grandfathers what I have built. This shot shows some of the input stage power supply , Hexfreds , Precision resistors from PRP , and a snippet of the output power supply cap banks for the + / - DC rails that make up the 140 VDC supply.
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PeerlessSeas2way~0.jpgPeerless and Seas 2-way Towers in Zebrawood5516 viewsThe fun part about building these speakers was the crossover design with a Zobel and Baffle Step Compensation (BSC). I wanted to try a larger driver than a 6.5 inches. I am really pleased with the sound and image. Unbelievable sound for the cost. The crossover uses open air inductors and Solen capacitors. The Veneer is Zebrawood adhesive backed. I was able to match the grain on both sides and the fronts. One coat stain and finish followed by paste wax. The speakers are drying in the garage awaiting the living room. Next is a pair of open baffle 3 way with active cross using DIY chip amps.
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IMG_2158.JPGNoyMark CS8412 + 8 x TDA1541A parallel battery powered nos dac project5505 viewsI built a few big power set tube amps with big triodes such GM70, 833. I wanted to do something different and completed my first diy nos battery powered DAC project. It use CS8412 as digital receiver and 8 X PHILIPS TDA1541A parallel as dac circuit. As buffer, i used two mono opamps OPA627. It uses no digital or analog filter. Sounding incredible natural (even one of my friend describing it as organic), warm and also detailed. Very silent background. I am very happy to do this equipment, otherwise i had to pay very big money for same sound. After charging the batteries, it works more than 10hours continuously. When i turn off the dac, it charges the batteries automatically. You can see other photos below:
http://stereomecmuasi.com/forum/viewtopic.php?f=46&t=965
http://stereomecmuasi.com/cihazlar/muziksayi3/noymarkdac.htm
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MicroStudio.JPGDIY Mini Recording System5500 viewsBased around the Sony ECM-MS957 stereo microphone (discontinued) and Cowon i6 mp3 player, I built a quality mic preamp to complete this mini-recoding studio. All components are high quality and excellent recordings can be made with no other equipment required. The idea is to keep this portable but to retain quality of recordings. From microphone to digital transfer provides clean, crisp, noise free recording. All battery powered the system sits easily on a table top at your local jazz club to record the music and the vibes.
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K-16LS-Tube-Amplifier-Kit.jpgK-16LS Tube Amplifier Kit from S-5 Electroncis5486 viewsThis is a stock build of a K-16LS Tube Amplifier Kit available from S-5 Electronics. The tube amp kit comes with a pine board so you will need to find a suitable enclosure you can fit the amp in or you can build you own enclosure.

See the DIY Tube Amplifier Kits page for more information about the various S-5 Electronics kits.
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6SN7-6L6-Tube-Amp-4.jpg6SN7-6L6 Tube Amp Top View5457 viewsTop view 6SN7, 6L6 Tube Amp.

Link to the schematics for this tube amp: Williamson 6SN7 - 6L6 (KT66) Tube Amplifier
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DSCF0797-C.JPGDIY-GENE Mark Levinson Clone 60Watt Class A Amplifier5450 viewsFor those that are less willing to create their own cases. Here is a completed DIY-GENE Mark Levinson Clone 60Watt / Ch Dual Mono Amplifier. It is hernia inducing weighing in at nearly 50Kg. The kit comes with most of the amplifier electronics built and tested and with all the casing components. All you need to do is to build the PSUs and put it all together. This example has 2 x 65-0-65V at 10A each. It runs very HOT as you would expect a high output Class A amplifier to run. Great care must be taken to mount the 12 x Output Transistors correctly, a small mistake cost me over £60.00 in burnt components. Note the Capacitor connections and the extremely BEEFY PSU.

Built by Andy Freestone
614 files on 31 page(s) 12


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