Up for sale is a rare single (1 Pc) vintage NOS Pinnacle 12AT7WA / 6201 premium military-grade dual triode audio tube, complete in its original vintage box. This high-spec valve features classic black plate construction and a top ring getter design. Highly sought after for phase inverter, driver, and preamplifier applications, offering outstanding dynamic resolution, ultra-low noise, and excellent audio fidelity.

This tube has been tested on an Amplitrex AT1000 automated valve tester at nominal reference settings. Plate Current (Ip) and Transconductance (uMhos) measurements alongside percentage performance ratings relative to standard factory specs are detailed in the table below.