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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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12AX7 Vacuum Tube Phono Preamplifier

Ok, so after buying a Sansui SR-1050C Turntable, I needed a phono preamp, so I built one.

This one uses no premium parts, but sounds great. It does have a small amount of 60Hz hum, and I plan on installing some tube shields as I know its been induced by the power transformer as the PS is completely clean. The preamp uses a pair of 12AX7 vacuum tubes.

The power supply uses a MOSFET for regulation and the preamp uses a passive RIAA equalization network.


Bernardo

Don-SE-807-Tube-Amplifier.jpg IMG_3492.jpg 12AX7-Tube-Phono-Preamplifier.jpg 00119.jpg CSS-FR125SR-Fullrange-Speaker-Drivers.jpg
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Album name:Vacuum Tube (Valve) Audio Projects
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Date added:Mar 08, 2009
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