In Reply to: RE: BDT Preamp Schematics posted by Gary P on June 13, 2008 at 18:19:36:
Hi Gary,
Yes again, thank you for this inital CCS circuit & your mods to John Swenson's VR variation.
I notice a change to the value of R14 from 27K in JS's schematic to 33K in your schematic but I see no mention of it in the write-up of your mods.
Is this value significant or is it just what was on hand - I think it's purpose is to biase the gates of Q1 & Q2 with at least 20V difference? I presume with 33K the biase differential between these gates will be greater than 20V?
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Follow Ups
- RE: BDT Preamp Schematics - jkeny 23:12:40 06/14/08 (0)