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| 614 files in 8 albums and 1 categories with 5 comments viewed 3,890,702 times |
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DIY-Granite-Speakers.jpgDIY Granite Speakers6351 viewsThese are granite speakers that Radoslav from Slovakia has put together. The bookshelf sized loudspeaker uses the Seas G17REX/P woofer and Seas 27 TFFC tweeter with a 2nd order XO at 2500 Hz.
For full details, see the DIY Seas Granite Speaker project page.
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K-12-Tube-Amp-Kit-with-Enclosure.jpgK-12G Tube Amplifier Kit with "G" Series Case7392 viewsFinished build of a S5 Electronics K-12G Tube Amplifier kit by Rudi Slejkovec in Slovenia. The enclosure is a "G" series case which is also available from the manufacturer.
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SAR-Labs-STA80-KT88-PP-Tube-Amp.jpgSAR Labs STA80 KT88 Tube Amp3477 viewsShot of a Scientific Audio Research Labs (SAR Labs) STA80 tube amplifier over at Fred's place (April 2010). The tube compliment was 12AT7, 12BH7 (I think) and JJ KT88 Blue Glass tubes. About 55-65W and very nice sound.
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Seas_FA22RCZ_in_Open_Speaker_Cabinet.jpgSeas FA22RCZ Fullrange in Open Speaker Cabinet9984 viewsThis is a "open cabinet" speaker that uses a Seas FA22RCZ driver (200 mm (8") fullrange). As you can see, the cabinet is open as it has no bottom. The speaker system impedance measures like a poorly adjusted bass reflex box, while the frequency response measures similar to that of a closed (sealed) cabinet. There is no filter network used with the Seas FA22RCZ driver.
The sound is very clean, open and free of compression artifacts, similar to open baffle speakers. Nevertheless, it has a satisfying bass depth.
See my blog for more information. It is written in German but you can use the Google translate tool on the right side of the page.
Kind regards,
Carsten Bussler from Germany
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier7263 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 amplifier6213 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 Amplifiers6461 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 Amplifier5407 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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