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
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
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 3,257,973 times
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LM3875-Gainclone-Chip-Amp-TF.JPGLM3875 DIY Gainclone / ChipAmp4643 viewsThe front view of my LM3875 Gainclone project. The layout and idea is from the LM3875 Gainclone in a Roasting Pan. The power transformer on top is from an old Yamaha subwoofer that quit working. Power supply capacitors are four 6800 uF and two 4700 uF which are snubbed. Power switch, LED and volume control are at the front.
KT88-Single-Ended-Tube-Amp.jpgKT88 Single Ended Tube Amp - Inside View4644 viewsInside view of my KT88 Single Ended Tube Amplifier projct. The circuit is just like Mikael Abdellah's Single Ended (SE) KT88 Tube Amplifier.
For the power supply I used some UF5408 diodes for the B+ and 6A10 for the heaters (they are on a heat sink as they dissipate a lot of power). Bypass capacitors for the driver stage are Rubycon ZL and for the power stage Nichicon. The B+ is lower to improve tube life.
More information and pictures are available on my build log: SE KT88 Tube Amp.
Fostex-FE206E-BLH.jpgFostex FE206E in Back Loaded Horn Enclosure9150 viewsBack Loaded Horn Speaker using the Fostex FE206E fullrange driver.
Philips_EL6431_Amplifier.jpgPhilips EL6431 Amplifier2571 viewsClose up photo a vintage Philips vacuum tube amplifier which I rebuilt. The Philips EL6431 uses four EL34/6CA7 tubes to obtain an output power of around 120 watts into an 8 ohm speaker.
For more information and photographs about my Philips EL6431 amplifier rebuild see the 120 watt Philips EL6431 Tube Amp forum thread.
Alan (Canada)
Last additions
DIY-6AS7-Tube-Headphone-Amplifier.jpgDIY 6AS7 Tube Headphone Amplifier4099 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, 400 W amplifier3173 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.jpgDual SV83 SET Amplifiers3267 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
6V6-Push-Pull-Amplifier.jpgPush-Pull (PP) 6V6GT Tube Amplifier2667 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.
