DIY Audio Projects Photo Gallery
 NEW    Bruce Heran outlines the details and construction of his simple DIY 6DJ8 (ECC88) Tube Hi-Fi Headphone Amplifier Project.

DIY Audio Projects Photo Gallery


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Category Albums Files
DIY Audio ProjectsShow off your Do It Yourself (DIY) Audio Projects.
8 614
Vacuum Tube (Valve) Audio Projects


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DIY Vacuum Tube (valve) Projects such as Tube Amplifiers and Tube Preamplifiers.

234 files, last one added on Feb 28, 2017
Album viewed 20 times

Speaker and Subwoofer Projects


Fostex-FX120-Bass-Reflex.jpg

A photo gallery to show off your DIY Loudspeaker and Subwoofer projects and kits.

135 files, last one added on Sep 25, 2014
Album viewed 22 times

Chipamp, Gainclone, T-Amp and Op-amp Projects


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DIY audio projects that are based around a single integrated semiconductor chip or an opamp like Gainclone, Chipamp or T-Amp projects.

74 files, last one added on Dec 15, 2014
Album viewed 11 times

Solid State Audio Projects


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DIY Audio Projects that are based around discrete (solid state) components, such as transistors, MOSFETS, J-FETS ...

57 files, last one added on Dec 20, 2015
Album viewed 11 times

Audio Cable Projects


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DIY Audio Cable Projects - Interconnect (RCA) Cables, Speaker Cables and Power (mains) Cables.

11 files, last one added on May 19, 2009
Album viewed 5 times

Other DIY Audio Projects


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Photographs of DIY Audio Projects that do not fall into any of the previous categories such as DIY turntables, power supplies, pictures of your listening room setup ....

19 files, last one added on Jun 16, 2013
Album viewed 15 times

S-5 Electronics Tube Amplifier Kits


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A photo gallery of the various inexpensive Tube Amplifier Kits from S-5 Electronics that have been built by DIYers. The kits include the K-8LS, K-12, K-16 and the similar K-502.

51 files, last one added on Sep 03, 2013
Album viewed 11 times

Commercial Hi-Fi Audio


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Photos of Commercial Hi-Fi Audio Gear, Components and Products.

33 files, last one added on May 15, 2012
Album viewed 5 times

8 albums on 1 page(s)

614 files in 8 albums and 1 categories with 5 comments viewed 3,046,757 times

Random files
EL84_PP_6E6P_driver_1.jpg
EL84_PP_6E6P_driver_1.jpgThe Simple EL84 PP version 2 (on steroids) 3441 viewsThis is the second version of my first DIY audio project. I changed the Driver tube to 6E6P strapped as triode with CCS load (IXYS 10m45s - 15mA).
Current sinks LM317 at EL84 cathodes it not grounded but connected to a -24V negative power supply. That gives more gain, less distortion and gives also much more headroom for the output stage.
The coupling caps are 0.22μF PIO JENSEN. I' ll try the russian teflons in the next few days.
This tube amplifier simply rocks.
DIY-HiVi-SP10-Subwoofers.jpg
DIY-HiVi-SP10-Subwoofers.jpgDIY HiVi SP10 Subwoofers6344 viewsDaniel's build following Adam's DIY HiVi SP10 Subwoofer Project. Daniel reports that the subwoofers produce low frequencies which are accurate and very well defined. There are many more pictures and information about Daniel's build at his webpage.
OatleyPhonoPreFinisS.jpg
OatleyPhonoPreFinisS.jpgMongrel Dog Audio JAN6418 tube phono preamp2309 viewsThis is a new tube phono preamp kit from Oatley Electronics based around the JAN 6418 sub-miniature pentode tubes. The phono preamp kit has been housed in a cast aluminum enclosure with a Hammered Copper finish. Inside the enclosure bitumanised aluminum foil lines the lid and top. Gold RCAs grace the back. The sound reproduction is full bodied with deep bass, bright mids and highs. This phono preamp may out perform my OPAMP unit.

There are more details about my experience with this inexpensive little phono preamp amp kit on the 6418 Tube RIAA Stereo Phono Preamplifier Kit project page.

Mark Houston
Fostex-FE206En-Double-Bass-Reflex-Speakers.jpg
Fostex-FE206En-Double-Bass-Reflex-Speakers.jpgFostex FE206En Double Bass-Reflex Speakers4112 viewsThe finish is satin black stipple and the grills are held in place with four rare earth button magnets. Easy to pop on and off. The stipple effect was produced with a roller going over the fresh paint a number of times as it dried. The drivers huge magnets have bitumanised aluminum foil dampening attached and the internal wiring is two stands of lightly twisted wire wrap wire to each binding post. The top chamber is lined (but not stuffed) with Dacron but the bottom chamber is empty. There is no crossover in these fullrange speakers. Efficiency is 96dB at 8ohms impedance so they work well with flea power tube amps. Sitting higher than the tweeter (wizzer cone) the sound is quite natural with just a touch of forwardness in the mid-range. The speakers not only look stunning they sound excellent for a $500 spend.

For full details see the Fostex FE206En Double Bass-Reflex Speaker project page.

Mark Houston – retro-thermionic

Last additions
DIY-6AS7-Tube-Headphone-Amplifier.jpg
DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier2875 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
4-channel-400W-amplifier.jpg
4-channel-400W-amplifier.jpg 4 channel, 400 W amplifier2183 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
E88CC-SV83-SET-Amplifiers.jpg
E88CC-SV83-SET-Amplifiers.jpgDual SV83 SET Amplifiers2345 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, USA
Dec 20, 2015
6V6-Push-Pull-Amplifier.jpg
6V6-Push-Pull-Amplifier.jpgPush-Pull (PP) 6V6GT Tube Amplifier1963 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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