FOUR RCA 6SN7GTB AUDIO DUOTRIODES-BLACK PLATES-NICE Start Price USD 19.99 Current Price USD 19.99 Time Left - Bid Count 1 Buy It Now Price - Reserve Price - Start Time Wednesday, November 26, 2008 End Time Wednesday, December 03, 2008 Location Arizona See more about 'FOUR RCA 6SN7GTB AUDIO DUOTRIODES-BLACK PLATES-NICE' Description Here are Four RCA 6SN7GTB Audio Duotriodes. All have black plates with bottom square getters. All tested very good on a Hickok TV-7 with test results as follows. 96/98. 96/98, 104/100, & 103/105. In plain white boxs with test results written on them. Tubes tested very good with no shorts or grid leaks. For Pictures try  http://community.webtv.net/sugar2u2lv/6SN7GTB    Place a Bid!