| Random files - DIY Audio Projects |
12AX7-ECC83-Tube-Preamp.jpg12AX7 / ECC83 Tube Preamp3553 viewsHi, I have built preamp with double triode 12AX7 from your web site.
The sound of this preamp is very very nice, detailed and realistic.
Pipa (from Czech Republic )
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Open-Baffle-Speaker-Ciare-CH250-Front.jpgOpen Baffle Speaker with Ciare CH2509362 viewsI have assembled the Ciare CH250 full range driver into an open baffle panel (birch plywood). Size of the baffle: height 80 cm, width 90 cm, thickness 18mm. The plans are the Open Baffle Plans from Stereo Sound "Tube Kingdom". The Ciare's are running without any filter network and sound surprising good.
See my blog for more information - Open Baffle mit Ciare CH250.
Carsten (Germany)
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B2BO_ICEPower_1000ASP_modules_.jpgICEPower 1000ASP modules in Par-Metal Enclosure5088 viewsThis is a high power audio amplifier project that I recently completed. The amplifier used two B&O ICEPower 1000ASP modules. Each amplifier module is rated at 1000 Watts. The two amplifier modules are housed in a Par-Metal aluminum case. The amplifier sounds amazing with my Epos ELS303 speakers.
See the other photographs.
Ed
Detroit, MI
USA
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retro-EL34-SE-UL.jpg3962 viewsThe enclosure base is made using Australian Spotted Gum and the power transformers and choke are from Hammond. The audio output transformers (OPT) are from Edcor (15W XSE open frame type series) and reside in the base and are shock mounted. The feet are filled with lead sinkers for resonance control. A CLCRC filter network ensures the amp performs dead quietly and has an extremely high head room. Frequency response is to 40kHz and power is 5W RMS into 8ohms. Russian paper in oil caps are used in the inter-stage and bipolar caps and low ESR caps are used in the cathode bypass. Silver plated wire-wrap wire hooks up the gold plated RCAs to the nearby 6N1P and connects the secondary of the OPTs to the binding post. The paint work is epoxy enamel on 2mm high grade Al plate and component-2-component wiring. This is a fast amp with a huge sound stage and a rich lush EL34 sound.
For more info, see the Pimp my tube amp thread on the discussion forum.
Mark Houston – retro-thermionic
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| Last additions - DIY Audio Projects |
DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier6687 viewsMy name is Laurie. I have been building and DIYing for 45 years now and happily will never stop. This tube headphone amp is from a thread in the Form.
The power connecting cable comes from a European Travel Iron I bought for $1.00 at junk shop. (220v/6A) They will be shortened when I find a perch for the amp and me. The sound is better than my ears have ever heard so I will be keeping this one for my retirement entertainment should such a time ever come. Wink It has worked from day one and continues to please me every time it is turned on. The tubes are JJ ECC88 / 6AS7 with a 5V4 rectifier tube. To spite it's small size the parts are quite easily accessed. I over built most components so it will outlast me I fear. The only change I anticipate may be the 6AS7 to a bottle neck glass to match the rectifier tube. I do have and use a 6080 tube, but i can tell no difference in sound. It will take more then a few hours of listening to get my ears better tuned.Feb 28, 2017
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4-channel-400W-amplifier.jpg 4 channel, 400 W amplifier5328 viewsThis 4-channel 400 W amplifier uses Hypex UcD400HG modules together with the corresponding power supply.
The whole is mounted inside a Galaxy 330 x 230 x 80 case.
For building instructions, have a look at this project's wiki.
Two such amplifiers has been working for over 2 years in my lounge, driving Linn Komponent 110 loudspeakers which each have 4 speaker inputs.
Francois Corthay - Switzerland
Project Page: 4 channel 400 W amplifier using Hypex UcD400HG modules Dec 20, 2015
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E88CC-SV83-SET-Amplifiers.jpgDual SV83 SET Amplifiers5499 viewsA mirrored pair of SET amplifiers, presently being used in bridged mode. All P2P construction using silver solder. I included a "Hazen grid" capacitor and input tube bias change switch. The single mA meter displays individual output tube bias current with a Left/Right switch. Edcor XPRW178 power transformer and GXSE10-6-8K output transformers. Upgraded caps to Jantzen Audio 1200V Z-Superior. Upgraded resistors to PRP PR9372 Audio for metal film and TAKMAN REX for carbon film. ALPS Blue 100K attenuator. The power supply uses a RCA 5U4GB rectifier and Hammond 156R choke. Matched pairs of Svetlana SV83 for power and JJ E88CC for the input tube.
Billy Whiten - Georgia, USADec 20, 2015
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6V6-Push-Pull-Amplifier.jpgPush-Pull (PP) 6V6GT Tube Amplifier4527 viewsThis 6V6 amp was built following the DIY Push-Pull (PP) 6V6 / 6V6GT Tube Amplifier Schematic. Power Supply transformer and Output transformers are handmade in Argentina by NavasBaccino. I'd like to thank Brad S. for the help. The sound is amazing and clear, free of distortion.
Gabriel Rofrano, ARGENTINA
Video link
Dec 20, 2015
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