NOS Philips ECG JAN 12AT7WA Cryo special quality 12AT7
This is a joint army navy Philips brand 12AT7WA. The WA specifies this to be a special quality version of the 12AT7 tube. The JAN indicates this is a military grade version of the 12AT7. This Philips tube was made in the USA in January of 1988. It features short grey plates and double mica top spacer. LBA had these tubes professionally cryo-treated for extended tube life. They have been extensively tested by LBA and are certified to be genuine new-old-stock and of very high quality. If you're looking for the best 12AT7, look no further!