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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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IMG_3234.JPGK-12G tube amplifier kit - finished6118 viewsBuilt the S-5 Electronics K-12G tube amplifier kit into an old Kenwood amplifier case. Finished product.
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mURI_temp_630f4f06.jpgDIY Speaker Cable6098 viewsThis is DIY Speaker Cable that I made for a friend.
This is the regular twisted pair design with the double shielding. I've used the regular heat shrink tube for the primary shield and nylon braided sleeve for the secondary shield.

The ends are terminated via plastic banana pins.

Also, here is a pair of DIY Braided Speaker Cables that I made.
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Tang-Band-D4-1-DIY-Back-Horn-Speaker-Kit.jpgTang Band D4-1 DIY Back Horn Speaker Kit6091 viewsThe fun and simple Tang Band D4-1 DIY Back Horn Speaker Kit. This little speaker kit comes complete with all the parts and tools required (minus a soldering iron). There is no cutting or finishing required (no saw dust or fumes!). The kit is very simple to build as it goes together just like ready-to-assemble furniture.

For a full review of this speaker kit, see: Tang Band D4-1 DIY Back Horn Speaker Kit.
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LM3875-Gainclone-Breadboard.jpgLM3875 Gainclone on Breadboard6083 viewsLM3875 Gainclone. The circuit is the same as Mark's LM3875 Gainclone. Most of the parts are from Dick Smith which can also be found at Radio Shack.
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S5-Electronics-K12-Tube-Amp-Kit.JPGS-5 Electronics K-12 Tube Amplifier Kit6083 viewsThis is a S-5 Electronics K-12 Tube Amplifier Kit. I run a Cambridge Audio Azure 540C CD player into it and it feeds a pair of 70L 12" 3-ways - the classic '70's speakers - a kit from Macs Hifi ( no longer there) in Adelaide. They are very efficient as you would expect - and have been upgraded several times with new drivers and crossovers.
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Diapony_sandOrion.jpgDiaphony' and Orion6083 views04/2010 Northern California DIY Audio meet
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Jordan-JX92S-Transmission-Line-Loudspeakers.jpgJordan JX92S Transmission Line Loudspeakers6067 viewsThe Jordan JX92S fullrange drivers in solid oak MLTL cabinets. These sound great. See my site for more details.
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TDA2003-Chip-Amplifier-Visaton-FRS-8-M-Sphere-Speakers.jpgTDA2003 Chip Amplifier with Visaton FRS 8 M Sphere Speakers6067 viewsDIY TDA2003 Chip Amplifier build in a wooden enclosure matched with a pair of Visaton FRS 8 M Speakers in a Sphere enclosure. This set of amp and speakers is used for a PC audio setup.

For more information, see the tda2003 chip amplifier and Visaton FRS 8 M sphere speakers thread on the forum.
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IMG_1869.JPGriverrat373's K-502 Tube Amplifier Kit - Front6048 viewsK-502 Tube Amp Kit without transformer cover and tubes.



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DSC_0168.jpgS-5 Electronics K-12M at Northern Californial DIY Event6042 viewsHere the S-5 Electronics K-12 Tube Amp is on display at a Northern Californial DIY Event.
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1.jpgK-16LM 16W Mono Tube Amp Kit6028 viewsThis is the K-16LM mono 16W tube amplifier kit, with Russian PIO capacitors and carbon composite resistors. This Mono Integrated Tube Amplifier utilizes a 5670 triode and 6005 pentode tubes push-pull. It has been converted for use as a guitar amp.

Here are photographs of the guitar amplifier that was built with with tube amp kit.
DIY Guitar Amplifier - Inside
DIY Guitar Amplifier
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K-12G-Tube-Amp-Kit-Wine-Box.jpgK-12G Tube Amp Kit in a Wine Box6002 viewsA K-12G Tube Amplifier Kit built into a wooden wine box.

Thread: K12G In A Wine Box ..
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S-5-Electronics-K-12-Tube-Amp-Kit.jpgS-5 Electronics K-12 Tube Amplifier Kit5996 viewsRear view of my build of a S-5 Electronics Tube Amp Kit. The enclosure is made from MDF and painted with a high temperature resistant black paint. The back holes are just an air intake for the fan.
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SV100841.JPGInside the Step-up tranni box for MM cartridge5960 viewsThe inside of the box is lined with sticky bituminised-aluminum foil and speaker dampening vinyl. Pure silver wire, gold connectors and silver solder are used throughout. Velcro pads hold the transformers in place. The step-up transformers are wired for 6 dB gain. For more information, see my project write-up on the DIY Lundahl Moving Magnet Phono Step-Up Transformers.
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K-12G-Tube-Amp-Top.jpgFinished K-12G Tube Amplifier Kit5955 viewsThis is Lofton's build of the S-5 Electronics K-12G Tube Amplifier Kit. Rather than use the supplied PCB, this build is done a turret board. Additional details and photographs for this build are available in the K-12G Tube Amp Kit Build Thoughts thread on the message forum.
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LM3875-Chipamp-Enclosure.jpgLM3875 Chipamp Enclosure5948 viewsThis is my LM3875 DIY Chipamp / Gainclone . Please see the other pictures for more details.
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Diaphony3.jpg"Diaphony's" An open baffle design5883 viewsConstruction
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Nigel-K-12G-Tube-Amplifier-Kit-Build~1.jpgK-12G Tube Amplifier Kit Build5862 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-HiVi-Tower-Loudspeakers.jpgDIY HiVi Tower Loudspeaker 5855 viewsSee the HiVi 3-way tower loudspeaker project page for full details of this speaker. Uses the HiVi F8 woofers, HiVi F5 mid-woofers and HiVi SD1.1A tweeters. Crossover is 2nd order at 500 Hz and 4000 Hz.
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AMPTILT.jpgS5 Electronics K-12M Tube Amp Kit - Side View5841 viewsSide view of the K-12M Tube Amp Kit showing the circuit board underneath and transformers and tubes above.
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