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| 614 files in 8 albums and 1 categories with 5 comments viewed 2,904,462 times |
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KJ1-Class-D-Amp-KJ2-Passive-Linestage.JPGAMP6 Amplifier + Passive Linestage4064 viewsTripath T-Amp using a 41Hz Amp6 T-Amp module and a toroidal power transformer. The linestage uses a top quality rotary switch and Gold Point attenuator. More info and FPD files are available on my project page.
Cheers, Keith
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Open-Baffle-Speaker-Fostex-FE206E-Eminence-Side.jpgFostex FE206E / Eminence Open Baffle Speakers - Side7153 viewsSide view of Keith's Fostex FE206E fullrange and Eminence speakers in an open baffle.
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Class-D-SureElectronics-Amp.jpgClass-D Sure-Electronics Amplifier1184 viewsThis is my first DIY Class-D amplifier. The amp is based on a $30 Sure-electronics module. The amplifier modules requires only a 30VDC high current power supply because into 4 ohm it can produce 100Wpc. The enclosure is an off the shelf 2U 19” rack mount type. The power supply has an 18-0-18V, 9A toroidal transformer. A 10A rec bridge, some snubbing caps and 30,000 uF of stage caps make up the power supply. Two selectable inputs provide direct connection to the amp module or connection via an Alp pot and 4 Oz brass knob. Very crisp sounding with good detail... See the forum thread Class D 100W power amp for more information.
Mark Houston – retro-thermionic
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier428 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.
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier428 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 amplifier1442 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 Amplifiers1709 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 Amplifier1347 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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