My first time looking for tubes, please point me in the right direction for good 12AT7s. I know the market is constantly shifting because of supply. Here’s one I found:
http://www.thetubestore.com/Tubes/12AT7-ECC81-Tube-Types/JAN-Philips-12AT7WC
http://www.thetubestore.com/Tubes/12AT7-ECC81-Tube-Types/JAN-Philips-12AT7WC