1950’s GE 6072 Triple Mica black plate,,, the best of the best!! Highly recommended for critical applications such as recording microphones and phono stages!
These E188CC 7308 tubes were made in Heerlen Holland and are one of the best sounding 7308 you can find. Premium quality 6DJ8 variant that has a 10,000 heater and incredible inner resolution and detail. If you want the best, these tubes are the way to go!