1 GE 6KN8 / 6RHH8 Electronic Vacuum Tube in Box. NOS Start Price USD 19.99 Current Price USD 19.99 Time Left - Bid Count 2 Buy It Now Price USD 34.99 Reserve Price - Start Time Sunday, November 30, 2008 End Time Sunday, December 07, 2008 Location Pa See more about '1 GE 6KN8 / 6RHH8 Electronic Vacuum Tube in Box. NOS' Description Up For Bid is 1 GE 6KN8/6RHH8 Electronic Vacuum Tube in Box. Made in USA. This tube is New/Old Stock. Tube is untested. Check my feedback on tube sales. Also view my other ebay auctions for more Vintage Radio / TV Tubes. If any questions, please e-mail. Buyer pays actual shipping cost. Thanks. Place a Bid!