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Modding DAC to use ECC186

207.112.107.18

Posted by Kamigo on November 30, 2005 at 19:32:54

Hi gang,

I traded some 6550s for some 9 pin tubes, 2 of which are NOS Amperex "SQ" ECC186s. From what I gather these are 12AU7 cousins that have identical specs except the grid to plate voltage is 90 instead of 180. I think I have that right. Anyway, can anyone suggest how I can drop down that voltage and try out one of these guys in my DAC kit?

Thanks!

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