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

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Single-Ended 5881 Tube Amp with 6N1P driver

Single-Ended (SE) 5881 Tube Amp operating in Ultra-Linear (UL) mode with a 6N1P driver. The amplifier is based on this KT88 SE UL Tube Amp. I constructed my own and used a couple of 5881 tubes which I got for free. I did use the 6N1P though. I over specked the power tranni which originally produce over 600V with no load and diode rectification. I eventually used the secondary centre tap, limiting resistors and a standby switch and brought B+ to 405V. The base is made of Asian Merbeau and the top plate epoxy enamel paint. Edcor XSE15-8-5K OPTs, and ceramic sockets add to the overall quality finish. The sound is clean and airy and the amp is dead quiet between tracks. It will play quite loud with efficient speakers and has no audible distortion. The sound stage fills the room and stereo image is very accurate.

Low-Inductance-DIY-Speaker-Cable.jpg bass_table.jpg 6N1P-5881-SE-UL-Tube-Amp.jpg CMoy-Headphone-Amplifier.jpg K-12G-Tube-Amp-Top.jpg
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Filename:6N1P-5881-SE-UL-Tube-Amp.jpg
Album name:Vacuum Tube (Valve) Audio Projects
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Date added:Apr 18, 2009
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