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DIY Audio ProjectsShow off your Do It Yourself (DIY) Audio Projects.

418

Vacuum Tube (Valve) Audio Projects

DIY Vacuum Tube Projects. Tube amplifiers and Preamplifiers.

134 files, last one added on Nov 19, 2009

Speaker and Subwoofer Projects

Show off your DIY Loudspeaker and Subwoofer projects.

103 files, last one added on Nov 15, 2009

Chipamp, Gainclone, T-Amp and Opamp Projects

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

61 files, last one added on Jul 05, 2009

Solid State Audio Projects

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

34 files, last one added on Sep 08, 2009

Audio Cable Projects

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

11 files, last one added on May 19, 2009

Other DIY Audio Projects

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

15 files, last one added on Aug 25, 2009

S-5 Electronics Tube Amplifier Kits

A gallery of the various inexpensive Tube Amplifier Kits from S-5 Electronics. K-8LS, K-12, K-16, K-502.

37 files, last one added on Jun 13, 2009

Commercial Hi-Fi Audio

Photos of Commercial Hi-Fi Audio Gear and Components.

23 files, last one added on Jun 13, 2009

8 albums on 1 page(s)

418 files in 8 albums and 2 categories with 5 comments viewed 562699 times

Random files

Massive Rectifier Vacuum Tube (Valve)202 viewsWhat a tube! This is a vacuum tube rectifier. 150 Amps with 6 channels.

6BQ5 / EL84 Push-Pull (PP) Tube Amp878 viewsTube amplifier built on the basis of the Schematic from 6BQ5 / EL84 Push-Pull (PP) Tube Amp.

Bills beautiful gear1293 viewsBill, an audio club member, held an afternoon of beautiful and varied music compliments of his valve based equipment. Valve Cymer monoblocks (bottom), passive preamp, Hydra power conditioner and separate DAC and transport. The speakers are local made but have been heavily modified with external Xovers. Truly magnificent sound.

Testing a DIY SE EL84 Tube Amp846 viewsHere I am testing the Single Ended EL84 Stereo Amplifier. The whole AMP fits on a 100 by 160 mm DIY PCB. A double triode ECC88 / 6DJ8 or ECC82 tube is used to amplify the input signal. See other photo for the finished amplifier and more details.

Last additions

DIY Vacuum Tube (Valve) Prototyping Bread Board5 viewsA simple DIY Vacuum Tube (Valve) Prototyping Test Board used to test single stage tube circuits.

See the DIY Vacuum Tube Prototyping Board post for additional details.Nov 19, 2009

FostexFE206E in Double Bass Reflex Speaker Enclosure3 viewsThis is the simpler enclosure recommended by Fostex for their high sensitivity FE206E drivers. The large magnet and basket spokes of the driver have been covered with bituminous damping. The upper chamber has sound deadening vinyl across the back and the rest of the upper chamber has double layers of thick Dacron lining it. The boxes are fastened using dowels, glue and wood screws. A Speaker Zobel / Impedance Equalization Circuit is used across the driver terminals. The sound soundstage is pin-point sharp and with good depth. Bass is sufficient without being heavy. For under $AU500 these speakers represent very good value. With a sensitivity of 96 dB/W my 6 W Ultra-Linear Single-Ended valve amps can produce a high sound level.Nov 15, 2009

retro-thermionic Merlot Amp with JJ KT88 Blue Glass30 viewsNot meaning to hog the Gallery at the moment but lots of development underway with my Merlot KT88 SE UL valve amps. I'll make it short: This is the Merlot amp with matched a pair of JJ KT88 Blue Glass. Sound: weightier bass and sharper mids but the JJs are only hours old.Nov 10, 2009

KT88 SE UL Tube Power Amplifier77 viewsI had put the partially finished amp in the gallery some weeks back. Now finished not a lot of difference on the outside except for the many silver colored screws on the top plate and some feet. See the other image for the underside shot. After a number of hours of careful listening and listening to it though others CD players, pre-amps and speakers I can say that most liked the sound. SE tube amps produce absolute and exquisite mid-range and silky highs and deep sound stage but this amp has a slightly narrow sound stage presentation. Bass improved and hum vanished with additional PS filter caps. With a brushed Al top plate and Mirabue timber thick timber base, Edcor XSE OPTs and component-2-component wiring on all circuit boards (including rectifier broard) this amp represents a clean and easy build with in-expensive parts. Though low powered (6W+) for a few hundred dollars you can experience the benefits of a tube SE UL design. So easy, so nice!

Here is a link to the KT88 Single-Ended (SE) Schematic I followed.Nov 01, 2009

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