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In Reply to: Update: I ordered a VTA Octal pcb. posted by Cougar on March 16, 2023 at 07:39:27:
Airtime and I have long been curious how much improvement would be gained by 6SN7s used as the phase inverters, over the two 12AU7s.
I've thought about converting my phase inverters to 12AT7s (VTA's original configuration) since the 12AT7 is a slightly more linear tube than the 12AU7, but I suspect that your all octal upgrade is really the way to go.
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Follow Ups
- I'm looking forward to reading about your results - 1973shovel 08:33:23 03/16/23 (0)