This is a photo type for a Ipod amplifier. It use 6DJ8 with supply at about +44V as input buffer and then drive a LM1876 IC power amplifier.
May 27, 2007
May 16, 2007
All Jfet Op-amp – not completed
This is another Borbely Erno design op-amp using all jfets. This is the most complicated one with high gain and thus a servo is required to maintain the output at near 0Vdc. I have tried this op-amp but I have not make it up to the best sound. As of 2009, I think the all jfet buffer line amp sound the best.
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