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K-12M-Tube-Amp-Test-Listen.jpgK-12M Tube Amp - First Listen1733 viewsThis is my first listen with a K-12M Tube Amp Kit. The source is a NAD C542 cd player, with 3 way 12" 92dB efficient speakers and Transparent 200 interconnect cables. A cool way to get into valve amps. I lost 1000 hours here!
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Velleman-DIY-Audio-Kits.jpgTwo inexpensive Velleman kits1729 viewsA preamp & amplifier kit that I'm going to combine to make a small integrated amp.
The preamp has volume and separate bass & treble controls.
The amplifier uses a TDA1521 IC.
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2-channel-Hi-Fi-Setup.jpgGio's Two Channel Hi-Fi Setup1978 viewsThis is my current 2-channel setup. NAD C521 CD player, NAD C162 preamp, DIY 50EH5 Tube Amp which drives Radio Shack 40-1310 Super Tweeters) and LM3886 Chip Amplifier (Gainclone) which drives a pair of BD-Pipes with Radio Shack 40-1197 drivers. The small box on the bottom right is a Slim Devices Squeezebox.
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SV100843~0.JPGLundahl transformer step-up project for MM cartridge.2144 viewsI recently upgraded my Raga Planar 3 with a Grado wood bodied Platinum reference cartridge. But output was low from the Pro-Ject SE phono preamp. LL1550 trannies supplied by K & K Audio and printed circuit boards allowed me to build a step-up kit in the wooden box the Grado cartridge came in. Compact and beautiful! For more information, see DIY Lundahl MM Phono Step-Up Transformers.
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SV100841.JPGInside the Step-up tranni box for MM cartridge2185 viewsThe inside of the box is lined with sticky bituminised-aluminum foil and speaker dampening vinyl. Pure silver wire, gold connectors and silver solder are used throughout. Velcro pads hold the transformers in place. The step-up transformers are wired for 6 dB gain. For more information, see my project write-up on the DIY Lundahl Moving Magnet Phono Step-Up Transformers.
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PreampComp.jpgMelbourne Audio Club - Preamp Comparison Night2492 viewsAt the May GM of the Club we did a blind A/B comparison between my 12AX7 Tube Preamp and OP Amp Preamp while the rest of the gear remained unchanged. No member knew whether he was listing to the valve or chip preamp, just A or B. Two similar tracks was played from a wide range of music styles the first track on one preamp and the second track on the other. The members voted 60/40 in favor of the chip preamp.
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DIY_Loudspeaker_Feet.pdfDIY Loudspeaker Feet Instructions2550 viewsHere are DIY instructions to construct feet for returning loudspeakers to the exact same position. Here is a link to a photograph of the finished DIY Loudspeaker Feet.
Much regards,
Guus Das.
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DIY-Phono-Turntable-1.jpgDIY Phono Turntable3422 viewsDo-It-Yourself (DIY) phono turntable. I used MDF filled with concrete / latex added to mix then veneered with Quilted Maple. The bearing is High grade SS and the cup is made of Oilite. The spikes are 2 piece with a rubber damper inside. The Motor is powered by a UPS battery enclosed in the small matching box.
Doug M
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DIY-Phono-Turntable-2.jpgDIY Turntable Project2835 viewsDIY turntable project. I used MDF filled with concrete / latex added to mix then veneered with Quilted Maple. The bearing is High grade SS and the cup is made of Oilite. The spikes are 2 piece with a rubber damper inside. The Motor is powered by a UPS battery enclosed in the small matching box.
Doug M
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DIY-Phono-Turntable-3~9.jpgDIY Phono Turntable Project3199 viewsI used MDF filled with concrete / latex added to mix then veneered with Quilted Maple. The bearing is High grade SS and the cup is made of Oilite. The spikes are 2 piece with a rubber damper inside. The Motor is powered by a UPS battery enclosed in the small matching box.
Doug M
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Sansui_1.JPGSansui AU-X11 (rare)2255 viewsThe Melbourne Audio Club Australia has many talented members. Some sell commercially, all over the world, there own brands others DIY for themselves while still others take it on themselves to restore "better" commercial units. This member has restored this (I'm told) rare Sansui AU-X11. It certainly looks impressive.
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Happy_Feet.jpgDIY Loudspeaker Feet1425 viewsThis is a photo of my loudspeaker feet project. For instructions on how to build the loudspeaker feet, see the DIY Loudspeaker Feet Instructions in PDF.
Much regards,
Guus Das.
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2.jpgDIY Guitar Amplifier - Inside1439 viewsHere is a photograph of the inside of the cabinet. You can see the K-16LM mono 16W tube amplifier kit mounted to the top. At the bottom there is a tiny General Electric 6SC7 tube preamp. Nice tube clipping!
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3.jpgDIY Guitar Amplifier 1103 viewsA photograph of the finished DIY Guitar Amplifier. The simple graphics on the faceplate are custom made and a fender speaker cover is used. The amplifier is a K-16LM 16W Mono Tube Amp Kit.
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Copy_of_Turntable_092.jpgDIY Turntable1030 viewsThis is the Finished Turntable with Dynavector DV10X5 MC on one tonearm and a Shure M97XE on the other. Both tonearms were extended and DIY Headshells were used. The Sealed Lead Acid Battery does a great job powering the TT and with only an hour or two listening per day, lasts all week (Maybe longer??)
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