THD Electronics YJUNI Yellow Jacket for UniValve， Single， w/Tube<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Yellow Jackets are a type of specialized adapter which permit the use of EL84/6BQ5 power tubes in place of 6V6， 6L6 and EL34 types. </span></li><li><span class="a-list-item"> Incliude one Yellow Jacket Converter and one EL84 power tube. </span></li><li><span class="a-list-item"> Standard type for THD UniValve and Bi-Valve-30 amplifiers. Reduces the power by about 50% and converts the amplifier to Triode operation. </span></li><li><span class="a-list-item"> Gives smoother overdrive， more sustain， richer mid-range harmonic content and greated touch-sensitivity， all at a lower volume. </span></li><li><span class="a-list-item"> Hand-built in Seattle， WA. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31GQCFC7PNL.jpg" noproxy>