Mullard 12AT7<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Medium gain preamp tube </span></li><li><span class="a-list-item"> Great for phase inverter or reverb slot </span></li><li><span class="a-list-item"> Brand new </span></li><li><span class="a-list-item"> Great for Hi-Fi preamps </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Ta1%2B%2B17LL.jpg" noproxy>