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| 614 files in 8 albums and 1 categories with 5 comments viewed 3,417,931 times |

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Fostex-FX120-Bookshelf-Coral-Flat-6B-Speakers.jpgDIY Fostex FX120 and Coral Flat-6B Bass Reflex Speakers8859 viewsDIY Bass Reflex Speakers. The larger speakers are 6.5"-7" (depending on how you measure them) Coral Flat-6B's. The build cost for them where about 2/3's that of my Fostex FX120 Speakers. I am going to dampen the stamped Coral frames some day, just to hear if it makes a difference. But so far I have nothing but praise left for these old drivers. They are 20+ years old, but they still kick ass.
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little-amp.jpg50L6GT Tube Amplifier4101 viewsThis little guy is something I came up with when a friend asked me if there was an inexpensive, but decent vacuum tube amplifier he could build. Well, it is low cost and sounds acceptable, but it is dangerous as one side of the AC line is connected to the chassis. Yes, I used a polarized plug, but it also depends on the receptacle being wired correctly... so I recommended that he should build it with an isolation transformer.
It uses two 50L6GT output tubes driven with a 12AX7A. The heaters are series strung with a 68 ohm resistor to take up the remaining 8 volts. The powersupply uses a 1N4005 half-wave rectifier, so it was a bit difficult to filter out the 60 Hz buzz.
For something cheap, it doesn't sound half bad. Though, it doesn't hold a candle to my 6T9 Push-Pull Tube Amplifier!
-Steve (z-strat)
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Ion_DIY_2-Way_TMM_Tower_Speaker.jpgIon - DIY 2-Way TMM Tower Loudspeaker6819 viewsThe Ion tower loudspeaker project is Adam's latest diy speaker project. The Ion is a 2-way speaker in a TMM configuration. A Tang Band 25-1372SC 1" inverted titanium dome tweeter is used along with a pair of Audax HM170CO 6" woven carbon fiber woofers.
The Ion speaker project will be a very challenging build but Adam notes that it comes with a huge payoff! The Ion tower speakers have quickly become Adam's favorite loudspeakers.
For the full project details, see the Ion - DIY 2-Way TMM Tower Speaker Project.
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S5-K16LS-Tube-Amp-Kit-Mahogany.jpgK-16LS Tube Amp Kit (16W)5255 viewsThe S-5 Electronics K-16LS tube amplifier kit built into a Mahogany case. The tube amp kit was built with all the mods outlined in the forums here at diyAudioProjects.com. The circuit board was built with components (except the tube sockets) on the bottom side so just the tubes would be exposed. The front driver tubes is lit red with LEDs.
Charlie Mooradian
USA
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier5130 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 amplifier4022 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 Amplifiers4133 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 Amplifier3377 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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