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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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The enclosure base is made using Australian Spotted Gum and the power transformers and choke are from Hammond. The audio output transformers (OPT) are from Edcor (15W XSE open frame type series) and reside in the base and are shock mounted. The feet are filled with lead sinkers for resonance control. A CLCRC filter network ensures the amp performs dead quietly and has an extremely high head room. Frequency response is to 40kHz and power is 5W RMS into 8ohms. Russian paper in oil caps are used in the inter-stage and bipolar caps and low ESR caps are used in the cathode bypass. Silver plated wire-wrap wire hooks up the gold plated RCAs to the nearby 6N1P and connects the secondary of the OPTs to the binding post. The paint work is epoxy enamel on 2mm high grade Al plate and component-2-component wiring. This is a fast amp with a huge sound stage and a rich lush EL34 sound.

For more info, see the Pimp my tube amp thread on the discussion forum.

Mark Houston – retro-thermionic

SynergyII-Cu-LM3875-Gainclone.jpg Fostex-FE206En-Double-Bass-Reflex-Speakers.jpg retro-EL34-SE-UL.jpg Don-SE-807-Tube-Amplifier.jpg 6C33C-SE-Amp-Don.jpg
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