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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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S5-Electronics-K12G-Tube-Amp-Kit-Schematic~2.pngS-5 Electronics K-12G Tube Amplifier Schematic10505 viewsSchematic for the S-5 Electronics K-12G Tube Amplifier Kit. This is a scan of the schematics that comes with the kit. The K-12G kit uses 10GV8 vacuum tubes.
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DSCN0747.JPGK-16LS Customized Tube Amplifier Kit5656 viewsUpgraded stock capacitors to Dayton Audios and Ruby Golds with filtering caps bottom mounted. Transformers rotated and side mounted to reduce noise, along with quad-star, shielded signal cables.
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DSCN0746.JPGK-16LS Customized Tube Amplifier Kit4873 viewsAdded silicone dampers to the tubes and upgraded the lamp-switch power cord to an IEC jack.
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DSCN0744.JPGCustomized K-16LS Tube Amplifier Kit4376 viewsAmong the many modifications, most notably I removed the pot and replaced it with resistors and an power indicator LED.
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K-16LS-Tube-Amplifier-Kit-Hammond-OPT.jpgK-16LS Tube Amp Kit with Hammond OPT6171 viewsAndy's son put also together a K-16LS Tube amplifier kit with the additional tone control preamp section. He used Hammond Output Transformers in place of the ones which came with the kit. See see his Andy's webpage for more photos and information.

Also, additional information about the S-5 kits is available at the Tube Amplifier Kit page.
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K-16LS-Tube-Amplifier-Kit-Modifications.jpgK-16LS Tube Amplifier Kit with Modifications4768 viewsHere are a couple of photos of Andy's K-16LS Tube Amplifier Kit. The enclosure is a Hammond 16" x 8" x 3" aluminum chassis. The original audio output transformers are 5K6 OPT's from an ELLA amplifier. For more information about Andy's build and modifications, see his webpage.

More information about these kits is available at the S-5 Electronics Tube Amp Kit page.
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K-16LS-Tube-Amplifier-Kit.jpgK-16LS Tube Amplifier Kit from S-5 Electroncis5105 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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DSC_0168.jpgS-5 Electronics K-12M at Northern Californial DIY Event5457 viewsHere the S-5 Electronics K-12 Tube Amp is on display at a Northern Californial DIY Event.
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AMPVIEW.jpgFinished K-12M Tube Amp Kit6145 viewsThe finished S-5 Electronics K-12 Tube Amplifier Kit.
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AMPTILT.jpgS5 Electronics K-12M Tube Amp Kit - Side View5263 viewsSide view of the K-12M Tube Amp Kit showing the circuit board underneath and transformers and tubes above.
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AMPWOOD.jpgWood Frame for Tube Amp Kit5143 viewsBubinga and Walnut wooden frame finished with Tung Oil.
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AMPBOTOM.jpgS5 Electronics K-12M Tube Amp Kit - underside4948 viewsUnderside view of top plate. This tube amp is built from an S-5 Electronics K-12 Tube Amplifier Kit.
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S5-Electronics-K12-Tube-Amp-Kit.JPGS-5 Electronics K-12 Tube Amplifier Kit5535 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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S5-Electronics-K12-Tube-Amp-Kit1.JPGS-5 Electronics K-12 Tube Amp Kit (220V)5208 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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IMG_1872.JPGriverrat373's K-502 Valve Amplifier Kit - Front4582 viewsFront view of the K-502 Tube Amp Kit without the transformer cover.
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IMG_1874.JPGriverrat373's K-502 Tube Amp Kit - Front4397 viewsFront view of the K-502 Tube Amplifier Kit with transformer cover.
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IMG_1875.JPGriverrat373's K-502 Tube Amplifier Kit - Side4392 viewsSide view of the K-502 Tube Amp Kit.
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IMG_1876.JPGriverrat373's K-502 Tube Amp Kit - Rear4569 viewsBack side of the K-502 Tube Amplifier showing vent for transformer cover and hookups.
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IMG_1869.JPGriverrat373's K-502 Tube Amplifier Kit - Front5474 viewsK-502 Tube Amp Kit without transformer cover and tubes.



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K-8LS-Tube-Amplifier-Kit.jpgS-5 Electronics K-8LS Tube Amplifier Kit6175 viewsS-5 Electronics K-8LS Tube Amplifier Kit on the work bench for testing.
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