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614 files in 8 albums and 1 categories with 5 comments viewed 3,303,399 times |

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LM3875-Gainclone-Protoboard.jpgDIY LM3875 Gainclone on Protoboard7777 viewsAnother view of the LM3875 Gainclone on a Protoboard. The schematic is the same as Mark's DIY LM3875 Gainclone project. All of the parts (except the chip) are from Dick Smith and can also be found at Radio Shack in the US.
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6SN7-6L6-Tube-Amp-4.jpg6SN7-6L6 Tube Amp Top View5597 viewsTop view 6SN7, 6L6 Tube Amp.
Link to the schematics for this tube amp: Williamson 6SN7 - 6L6 (KT66) Tube Amplifier
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Radio-Shack-40-1354-ML-TQWT.jpgRadio Shack 40-1354 ML-TQWT Speaker9207 viewsThis is the Bob Brines folded TQWTs for the Radio Shack 40-1354 fullrange drivers. The dustcaps have been removed and phase plugs installed. With the phase plugs, I've stopped using super tweeters with these. They are awfully satisfying. The great wood work was completed by Mike Berg, who built the cabinets for me!
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DSC_0168.jpgS-5 Electronics K-12M at Northern Californial DIY Event6081 viewsHere the S-5 Electronics K-12 Tube Amp is on display at a Northern Californial DIY Event.
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier4409 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 amplifier3426 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 Amplifiers3494 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 Amplifier2888 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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