S-83Am: Amtrans Alumina octal, chasis mount valve base, gold plated
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This unique valve base from Amtrans includes a detachable flange that allows for easy connection to the chassis via the mounting holes.
Made in Japan out of ceramic that is 95% alumina, having a thermal conductivity that is about ten times higher than conventional steatite ceramics. It restrains the increase of tube temperature and contributes to the longer life of the tubes.
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