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| 614 files in 8 albums and 1 categories with 5 comments viewed 2,897,301 times |
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EL84-Single-Ended-Tube-Amp.jpgTesting a DIY SE EL84 Tube Amp4757 viewsHere I am testing the Single Ended EL84 Stereo Amplifier. The whole AMP fits on a 100 by 160 mm DIY PCB. A double triode ECC88 / 6DJ8 or ECC82 tube is used to amplify the input signal. See other photo for the finished amplifier and more details.
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DIY-Seas-Granite-Speakers.jpgGranite Speakers with Seas Drivers5027 viewsThese unique looking speakers are housed in a bass reflex enclosure constructed out of black granite. The enclosure size is 15L and tuned to 45 Hz. The drivers, G17REX/P woofer and Seas 27 TFFC tweeter are from Seas. The crossover is second order at 2500 Hz. See the project page: DIY Granite Loudspeakers with Seas Drivers for more information.
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K-12G-Tube-Amp-Kit-finished-cmetzner~1.jpgFinished K-12G Tube Amplifier Kit4223 viewsA S-5 Electronics K-12G tube amplifier kit built into a diy enclosure. The small vacuum tube amplifier sounds terrific with high sensitivity 6" Audio Nirvana speakers.
For more information about these inexpensive tube amplifier kits see the S-5 Electronics DIY Tube Amplifier Kit reviews.
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Silver_Dragon_300BSE.jpgretro-thermionic Silver Dragon 300BSE1819 viewsThis amp has taken nine months to build. It was design by
Suncalc on the forum from the ground up based on three criteria I stipulated: 1-two stage 0NF, 2-6SN7 and 300B tubes with tube rectification and 3-Single ended.
Most of the main components were selected by the customer I built it for: TJ Full Music 300BSE(RRP $1200), 50 year Treasure 6SN7, Audio Note Silver foil caps, Mundorf M-Tube poly filter caps, silver wire in the audio path. Other components were my selection.
The bass is extended, full rich mids and treble bright and extended. Very expensive to build and a long time in the making but really worth it. http://www.retro-thermionic.blogspot.com/
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier378 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 amplifier1403 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 Amplifiers1671 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 Amplifier1314 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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