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Old 9th May 2020
Originally Posted by John Eppstein View Post
Have you tried Carl's? He originally developed it as an upgrade for the Quad-Eight consoles. They're not the same lineage as the usual ones you see on the DIY boards.

Is 90 dB gain on a .775V source enough for you?
No, it's not unless it's at 10k hz meaning that the low frequency OLG is around 120 db. Only the Jensen 990 achieves an OLG of 90 db at 10k hz.

90 db of gain on a .775 volt source will clip very badly. 1 mv will be amplified well over 10,000 times and will also clip.