6SN7GT, NATIONAL UNION, US NAVY CNU MARKED, JULY 1943 MANUFACTURE 6SN7
6SN7GT, NATIONAL UNION, US NAVY CNU MARKED, JULY 1943 MANUFACTURE We have on offer today, one of these sonically lush high performance triodes. It carries white markings on the black base. This device shows full emission and superb matching for each triode section within each envelope - a hallmark of a good valve.