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Re: Single 45 Amp question and pics

I'm using 1/2 of each driver tube. I used opposite pins on left and right channel so I can swap left with right after a couple of years.
I have 2 options for the 2.5v supply.
First option: A 5vct 3A which only allows me to use 45 tube.
Second option : 2- 2.5v 3a each but no center tap. This allows me to try 2A3 tubes. The problem here is that I don't know how to reference to ground without the center tap. Can anyone help with this ?


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