It is quite odd to specify the AC when what is really wanted is a DC result.
6AX5 is mighty similar to a 5Y3 and 140mA is a LOT for that type.
Plot it. Yes, 190VAC and 140mA DC is legal, barely, and mighty sagged.
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Isn't that the point do using tube rectification? 😀
FWIW, I'd use a pair of HER308... https://www.rectron.com/data_sheets/her301-308.pdf
Or a pair of 6DE4 or the like 🙂
FWIW, I'd use a pair of HER308... https://www.rectron.com/data_sheets/her301-308.pdf
Or a pair of 6DE4 or the like 🙂