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| 614 files in 8 albums and 1 categories with 5 comments viewed 3,618,586 times |
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OTL-Tube-Headphone-Amplifier.jpgOTL Tube Headphone Amplifier4810 viewsThis is a picture of a tube headphone amp that I was building but gave up as I could not get it to work properly.
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DSCN0061_M1~2.jpgMy Black Velvet OTL headphones amplifier 3593 views6AS7G RCA & Rare RV200/600 Tungsram-Germany & PCC88 Siemens /golden pins/
OTL for headphones 200 and more ohms. Loftin-white, only 1 cap ELNA between output stage and headphones.
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TDA2003-Chip-Amplifier-Visaton-FRS-8-M-Sphere-Speakers.jpgTDA2003 Chip Amplifier with Visaton FRS 8 M Sphere Speakers6745 viewsDIY TDA2003 Chip Amplifier build in a wooden enclosure matched with a pair of Visaton FRS 8 M Speakers in a Sphere enclosure. This set of amp and speakers is used for a PC audio setup.
For more information, see the tda2003 chip amplifier and Visaton FRS 8 M sphere speakers thread on the forum.
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_63-Fender-Reverb-Clone.jpg'63 Fender Reverb Clone2942 viewsHere is a photo of the last project I built. It is a rear view with the cover removed. It is a modernized clone of a '63 Fender Reverb. I changed a few things like using modern grounding and layout methods I went with larger filter caps a full wave bridge rectifier. I think I used a slightly nicer spring suspension system to "fly" the pan in it's shock isolation mounting. The input jack is grounded to the chassis but the other jacks are isolated. There are two transformers and one choke, all are made in USA with paper insulation. The enclosure is Maple. The sound is very true to the vintage Fender. It goes from very subtle to full-on spring/twang.
Chris A.- California, USA
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DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier6461 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 amplifier5148 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 Amplifiers5308 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 Amplifier4340 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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