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Radio Valves

Six Sixty S.S.8 Azide Triode

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The Six Sixty Valve Co. was purchased by Mullard/Philips to market the quite large quantities of PM valves which failed quality control. Valves were _very_ expensive in the late '20s, so these cheaper ones were in demand.

© Andy Cowley, 2005-2012     Home

This page last modified by AJC on Monday, 29-Mar-2010